Go to the map in Spectator mode and look for a drivable tank to the left and in front of two trucks. From there, it should be right next to the destroyed building you are looking for. Make sure the truck behind the tank is in front of a destroyed Flak cannon, and the building is to the left according to the direction of the tank. After you locate the building notice that the walls are divided into squares or segments. And keep note the correct building is not alone; it is connected to a series of buildings. Line up the tank exactly with the square segment it is next to on the building. Look carefully at the shadows and notice how they fade out the walls. If you look carefully enough looking at the entire wall square, you should see a chicken with its wings in the air with big bulging eyes. Two segments over you should see a fat pig standing up and smiling.

Note: This is especially fun in Zombie mode. Enable the following codes:

    ragdoll_bullet_force 10000
    ragdoll_bullet_upbias 10000
    ragdoll_explode_force 60000
    ragdoll_explode_upbias 2

Once you kill a zombie and he slumps to the ground, shoot him again and watch him fly. Toss a grenade into a pile of corpses and watch them scatter.

To destroy the other tanks faster and slightly easier, shoot the tanks in the treads. This will destroy them in two shots about 90% of the time, rather than an average of four shots. When shooting at the tanks,  move from side to side. Those tanks do not have the best aim, depending on the difficulty setting. If you wait just a moment after you shoot before you shoot again to slightly increase your accuracy.

There are two concrete bunkers in this map. Go to the one on the edge of the cliff. From this room you can snipe players as they run by and also shoot them as the try to get in from behind.

Reach the following prestige ranks to unlock the corresponding extra custom weapon slots:

WEAPON SLOT - PRESTIGE RANK
Weapon Slot 6 - First prestige.
Weapon Slot 7 - Second prestige.
Weapon Slot 8 - Fourth prestige
Weapon Slot 9 - Seventh prestige.
Weapon Slot 10 - Tenth prestige.

Note: In Zombie mode, this will work without having to use the devmap' code. Otherwise you must first enable the devmap' code. Once in the map, enable the following codes:

    player_breath_hold_lerp 50
    player_breath_gasp_lerp 0
    player_breath_hold_time 30

Zoom in with your scope, press [Shift] to steady, then release [Shift]. The scope will stay perfectly still.

Unlock the following perks by performing the corresponding tasks:

Perk Slot 1
Special Grenade x3: Reach level 4 (three special grenades, no smoke).
Satchel Charge x2: Reach level 4 (two remote detonation explosives).
M9A1 Bazooka x2: Reach level 4 (bazooka with two rockets).
Bomb Squad: Reach level 16 (seek out enemy explosives).
Bouncing Betty x2: Reach level 24 (two pressure activated mines).
Bandolier: Reach level 40 (extra ammunition magazines).
Primary Grenade x2: Reach level 44 (two primary grenades).
M2 Flamethrower: Reach level 65 (projects a controlled stream of fire).

Perk Slot 2
Stopping Power: Reach level 4 (increased bullet damage).
Fireworks: Reach level 4 (higher explosive weapon damage).
Flak Jacket: Reach level 4 (reduce explosive damage).
Gas Mask: Reach level 4 (protect against Tabun Gas).
Juggernaut: Reach level 4 (increased health).
Camouflage: Reach level 12 (undetectable to enemy recon planes).
Sleight Of Hand: Reach level 28 (faster reload).
Shades: Reach level 32 (reduce intensity of signal flares).
Double Tap: Reach level 36 (increased rate of fire).
Overkill: Reach level 56 (carry two primary guns, no pistol).

Perk Slot 3
Deep Impact: Reach level 4 (deeper bullet penetration).
Extreme Conditioning: Reach level 4 (sprint for longer distances).
Steady Aim: Reach level 4 (increased hip fire accuracy).
Toss back: Reach level 6 (reset fuse of picked up grenades).
Second Chance: Reach level 9 (revive downed allies).
Martyrdom: Reach level 20 (drop a live grenade when killed).
Fireproof: Reach level 48 (reduce fire based weapon damage).
Dead Silence: Reach level 52 (less sound when you move).
Iron Lungs: Reach level 60 (longer breath hold while sniping).
Reconnaissance: Reach level 64 (show enemy dogs, artillery, and tanks).

Vehicle Perks
Water Cooler: Reach level 4 (decreased turret overheat).
Greased Bearings: Reach level 4 (increased turret rotation speed).
Ordnance Training: Reach level 12 (decrease reload time of turrets).
Lead Foot: Reach level 28 (increases tank top speed).
Coaxial Machine Gun: Reach level 40 (driver controlled machine gun).

Beat Campaign mode. This is a four-player Co-op mode against endless waves of Nazi zombies. Alternately, get invited to participate in a Zombie mode game in Co-op mode and it will then become unlocked permanently on your own game.

There is a platform with a ladder on the side of the building. To reach this platform, either climb the ladder or go up the stairs inside. This spot connects to a ledge inside the building.

Go to the circular building and look through the stair entrance. There is a hut with two rectangular windows overlooking the sandy area that can be used as a sniper position. Also, there is a tall building on the water with windows overlooking the entire map that can be used.

-Go to the little room at the bottom of the map (with the ladder), and jump across the walkway. You should be on a very thin log-like object. Proceed on the thin piece of wood and you will eventually reach an area. It is easy to snipe people from here, and no one will think someone would be there.

-At the house where the Marines begin, as you go outside there is a set of stairs. Crouch beside the stairs and you will blend into the bushes. This location gives you a good view of the tower and the ocean.

Open the room that says "Help" during the third or fourth round. It will supply weapons that will be useful in a crucial battle. Note: There are four openings that the zombies will try to break through. Never open up the stairs; it will result in more zombies.

At Upheaval on the Nazi side, go to the left into the building. Inside there is a board next to the door. Look closely to see a chicken with a knife through it. You can shoot the chicken off, but to get the knife you need an explosive.

Kill the following number of enemies in a row to get the corresponding bonuses:

KILLSTREAK - BONUS
3 enemies - Recon plane displays enemies on your team's radar.
5 enemies - Artillery strike that can placed anywhere on the map.
7 enemies - Send out an angry pack of dogs against the enemy.

Go into the big pit as a spectator, and you will hear the Red Army shouting their battlecry of "URA! URA! URA!". Oddly enough, you cannot hear them at all from within the actual map boundaries (unless you are unfortunate enough to fall in).

To activate the following cheats, during gameplay press ~ to bring up the console window. Then, type "devmap mak" and press ENTER to enable cheat mode. Press ~ again to bring up the console window, then activate the following cheats by entering the corresponding codes:CHEAT FUNCTION - CHEAT CODE
God mode - god
Double health and can survive one grenade explosion - demigod
All weapons - give all
Infinite amunition - sf_use_ignoreammo 1
No clipping mode - noclip
Flight mode - ufo
Teleport to a node - jumptonode
Disable AI - notarget
List maps - mapname
Change maps - map [map name]
Change maps with cheat mode enabled - devmap [map name]
Black and white movie mode - sf_use_bw 1
Photo negative mode - sf_use_invert 1
Silent movie mode - sf_use_chaplin 1
Commit suicide - kill

Reach rank 13 in Online Multi-player mode.

When you upgrade the Colt M1911 the bullets will explode.

In the center of the map there is a two story concrete building. Place satchels or Bouncing Bettys to protect your location. There is also a big white estate with a ladder and staircase in front of it that can be used as a sniping location.

On the Japanese spawn side of the map are two concrete bunkers. Go into the one at the top of the hill (with Japanese Flags on it) in Spectator mode. Go through one of the small windows into the back area of the bunker. Turn around and turn up the volume. You should hear a strange garbled and quite disturbing voice coming from the wall. It is a disembodied voice.

At the bottom of the two story tin building on the Marine's spawn side is a jail cell with a dead tortured Russian soldier in it. Coming from the door in the cell, you can occasionally hear a Japanese person torturing another soldier.

Unlock the following weapons by performing the corresponding tasks:

Bolt Action Rifles
Springfield: Reach level 4.
Sniper Scope: Already available (increases accuracy and range).
Bayonet: Complete Marksman Challenge 1 (increases melee attack range).
Rifle Grenade: Complete Marksman Challenge 2 (grenade launcher attachment, replaces Perk 1 slot).

Arisaka: Reach level 4.
Sniper Scope: Complete Marksman Challenge 1 (increases accuracy and range).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).
Rifle Grenade: Complete Marksman Challenge 3 (grenade launcher attachment, replaces Perk 1 slot).

Mosin-Nagant: Reach level 21.
Sniper Scope: Complete Marksman Challenge 1 (increases accuracy and range).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).
Rifle Grenade: Complete Marksman Challenge 3 (grenade launcher attachment, replaces Perk 1 slot).

Kar98k: Reach level 41.
Sniper Scope: Complete Marksman Challenge 1 (increases accuracy and range).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).
Rifle Grenade: Complete Marksman Challenge 3 (grenade launcher attachment, replaces Perk 1 slot).

PTRS-41: Reach level 57.

Rifles
SVT-40: Reach level 4.
Flash Hider: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Telescopic Sight: Complete Marksman Challenge 3 (enhanced telescopic sight).

Gewehr 43: Reach level 7.
Suppressor: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Telescopic Sight: Complete Marksman Challenge 3 (enhanced telescopic sight).
Rifle Grenade: Complete Marksman Challenge 4 (grenade launcher attachment, replaces Perk 1 slot).

M1 Garand: Reach level 17.
Flash Hider: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).
Sniper Scope: Complete Marksman Challenge 3 (increases accuracy and range).
Rifle Grenade: Complete Marksman Challenge 4 (grenade launcher attachment, replaces Perk 1 slot).

STG-44: Reach level 37.
Flash Hider: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Telescopic Sight: Complete Marksman Challenge 3 (enhanced telescopic sight).

M1A1 Carbine Reach level 65.
Flash Hider: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Bayonet: Complete Marksman Challenge 3 (increases melee attack range).
Box Magazine: Complete Marksman Challenge 4 (increases ammunition capacity).

Sub Machine Guns
Thompson: Reach level 4.
Suppressor: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Round Drum: Complete Marksman Challenge 3 (increased ammunition capacity).

MP40: Reach level 10
Suppressor: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Dual Magazine: Complete Marksman Challenge 3 (increased ammunition capacity).

Type 100: Reach level 25.
Suppressor: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Box Magazine: Complete Marksman Challenge 3 (increases ammunition capacity).

Ppsh: Reach level 41.
Aperture Sight: Complete Marksman Challenge 1 (precision sight).
Round Drum: Complete Marksman Challenge 2 (increased ammunition capacity).

Shotguns
M1897 Trench Gun: Reach level 4.
Grip: Complete Marksman Challenge 1 (vertical foregrip to reduce recoil, replaces Perk slot 1).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).

Double Barreled Shotgun: Reach level 29.
Grip: Complete Marksman Challenge 1 (vertical foregrip to reduce recoil, replaces Perk slot 1).
Sawed-Off Shotgun: Increases weapon spread, but reduces accuracy.

Machine Guns
Type 99: Reach level 4.
Bipod: Complete Marksman Challenge 1 (reduces motion for more accuracy).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).

BAR: Reach level 4.
Bipod: Complete Marksman Challenge 1 (reduces motion for more accuracy).

DP-28: Reach level 13.
Bipod: Complete Marksman Challenge 1 (reduces motion for more accuracy).

MG 42: Reach level 33.
Bipod: Complete Marksman Challenge 1 (reduces motion for more accuracy).

FG 42: Reach level 45.
Bipod: Complete Marksman Challenge 1 (reduces motion for more accuracy).
Telescopic Sight: Complete Marksman Challenge 2 (enhanced telescopic sight).

Browning M1919: Reach level 61.
Bipod: Complete Marksman Challenge 1 (reduces motion for more accuracy).

Pistols
Colt M1911: Reach level 4.
Nambu: Reach level 4.
Walther P38: Reach level 4.
Tokarev TT-33: Reach level 21.
.357 Magnum: Reach level 49.

Primary Grenades
Frag: Reach level 4.
N 74 ST: Reach level 4.
Molotov Cocktail: Reach level 10

Special Grenades
Smoke: Reach level 4.
Tabun Gas: Reach level 4.
Signal Flare: Reach level 4.

-There are several good sniping positions on this map. The first is a small room overlooking the garden and the front staircase. To get to this room, either climb the ladder or go up the stairs. The second location is a tiny room that has a clear line of sight into the room mentioned above. To get to this room, go to the bottom of the map and climb up the staircase. You should be on a wooden porch that connects to the gardens. Turn left and you will be in the room.

-Enter the small room at the bottom of the map (the one that does not have a ladder leading towards it) and find the piled-up boxes. Climb onto the smallest box, then hop up to the top. From here you can snipe opponents without anyone actually spotting you. Also if you face the doorway, you can shoot people who try to get to you.

Go into Spectator mode on Cliffside and look down the cliff at the beach. To the left, you should see a little crater on the beach where a mortar shell has hit. Fly down through the crater and keep going down. You will eventually go into some invisible water. Come up out of the water a bit and look around. You should see a large bush nearby in the mist. It is just floating there very far under the map.

Go to Free Spectating mode and look around the map until you find a radio tower with Japanese flags on it near the Japanese spawn side. Go above the tower and slightly beside it. Wait a while and you should here a German or Russian commander voice.

Find some dead bodies, then run up to them and make sure no one else is around besides your teammates. Get down into laying position. After that, crawl into what appears to be the body of the dead person, so it looks like there are fragments of the body around your HUD. Lower your gun, but have it high enough to still see what is coming. This trick will make it harder for people to see you unless they are paying close attention to the ground. The downside is that people can sneak up from behind and see you, and you can only see in one direction without moving. After a couple kills move to another location because other players will pick up on your trick and grenade or rush you.

-After the boat crashes, call in an air strike on the specified location. Run up to the beach and move to the right to a small puddle at the right side of the beach. Stand in it briefly, then move towards the center of the beach to find a smaller puddle. Stand in that puddle briefly. Move towards the far left side of the beach. Stand briefly in the puddle in the barb wire. After several seconds the screen will shake and you will hear strange voices. Four lion statues will rise out of the ground with alien ray guns in their mouths.

-If you just stand in the last puddle and not the others, you will still hear the weird voices and can get the ray guns.

-On the second floor of the hangar is a small room. From the outside, you can reach it by climbing up the rubble pile on the side of the building.

-Go to the porch outside the hanger entrance. Close to the hanger is a large white carved stone. Jump on it and try and hop over the fence. You will fail, but will land on the fence.

Put Bouncing Bettys in your class, then find a dead body and place a Betty in it. No one can shoot at it to defuse it, and it cannot be seen. This tactic is considered "Japanese" because in the game the Imperial Army booby trap the dead.

If run out or are running low on ammo on any mission in Solo mode, find a non-essential teammate (someone not involved in the story line). Walk up to him and aim the reticule near his head or torso. Knife the air, and as you do so move slightly towards them so that the reticule is over them. If done correctly, your teammate should die and should drop his weapon. The difficulty setting doesn't matter. Non-essential teammates will get replaced when you walk into a battle. If the teammate does not die but keeps getting back up, they are essential to the story (for example, Sgt. Roebuck and Sgt. Rezenov).

Reach level 32. Veteran mode is a Co-op mode with higher difficulty enemies.

On the multiplayer map "Airfield", go to the first side, which is the one where you spawn behind the big building then go out to the field. Instead, go inside the building and examine it. Check out the pillars and windows, then go upstairs to the left. Look around some more and on the balcony. Notice it is the same building in the Nacht Der Untoten (zombie) mission, except all the entrances are walled up or blocked by an invisible wall.

-On the right of the map, head up the stairs to find a long hallway. Turn right and go to the end. From here you can snipe people down below through the opening, or you can crouch behind the boxes and snipe people trying to get in.

-In the center of the map, on the second floor, (above the bathroom), there is a balcony. You can guard the doorway, snipe people in the courtyard, or snipe someone in the room mentioned above.

-You can hear a disembodied voice by the bathroom. It comes from just outside of the bathroom, and is best heard in Spectator mode.

-Just outside of the bathroom on Asylum, exactly where the disembodied voice is heard, you can also hear the voice of a crying girl. She will switch back and forth from crying to laughing, and just like the voice, is quite disturbing.

-All around the stairs that are a bit away from where the piano can be heard, you can hear knocking on the wood that is covering up all the windows. If you fly around constantly as a spectator, you will hear this wooden knocking sound everywhere. It distinctly sounds like someone deliberately knocking on wood. It can also be heard on the boarded up windows on the other side of the map.

At the end of every round, do not kill the last zombie. Kill all of the others, but keep one live. When it has entered the building, toss a grenade at it to blow off its legs. It should now crawl slowly on the ground, leaving you plenty of time to patch up any windows you need. The next round will not begin until you kill him. He is easy to evade. Use this opportunity to get ready for the next round. When you are ready, kill him and the round will end.

-This works best in online multi-player mode. After the first few waves, open the upstairs and not the door. After that, open the other stairs leading into the gun room. You will only need to worry about that room and the stairs. Have two people guard the stairs. The room has less obstructions to get caught up on and more space to move. If overwhelmed you can open the door, but the next round will be your last.

-There are two methods of doing this trick. In the upstairs over the first starting room is a room with one window and a doorway with a window view. Use that door way to bottleneck zombies while having someone else guard the stairwell and window. You can either unlock the door then the far stairs. This will keep your back free. The other way is to unlock the first stairs, leaving no protective sides. The only downside is eventually you will need ammo. This works well online, as long as you work together.

-Get to level three and leave a Crawler. Open the door with steps (not the ramp). Then, open the door that leads to the Thompson and then clear the debris. Jump down and turn the power on. Nown run out and make a right. Keep going straight. You will pass two windows on your right and a door on your left and right. Do not open the doors. From this area, take out the zombies that come down the path and have someone watch the window in the back. For the dogs, go to mainframe and hide by the fence that is in the corner by the window. When the dogs are cleared, return to the path and continue doing this. Do not forget to leave a Crawler or a zombie in the window and be careful getting the nukes so you do not kill the final zombie so that you can get perks or whatever else.

For the first couple rounds, let all of the zombies break down the boards and come inside. Then, use your pistol or knife to kill them to earn more points than by simply shooting them once in the head. A knife to the head will earn 130 points per kill. Once all of the zombies are dead, patch up the boards. You will have much more money than if you simply killed them as they approached. Note: After level 3, the zombies are too powerful to be taken down this way.

Inside the church tower, look through the circular window. There is a white building with a little balcony in the distance. Use it to snipe from.

-Nearthe top of the map is building with two windows that overlook the whole area. Note: Other players will try to get you.

-Enter the house next to the burning house. Stand on a windowsill and face the side. You should fall on a ledge below.

-Enter the burning house, then go up the steps and out the window in the same way to hit a ledge below.

-Go to the building in the centerof the map (near the building on the far left). Go up the stairs. Turn left at the top and turn left again. You should see a wall you can climb over. Climb over it and you should be on a small ledge. Note: Rather than trying to climb onto the ledge all at once, you can climb onto the wall sticking out, then climb onto the ledge. This is a great sniping location. Also, if there is someone in the building already, you can climb onto the ledge from the outside, although this may require a few attempts.

-At the bottom of the map is a building with a ladder. Climb the ladder to reach a good sniping location. It is hard for people to get to you because the only way in is up the ladder.

-Go into the burning building through the door that is near the middle of the map. Go through the building and out the other door. Turn left and climb up the boxes and wall. Turn right and jump to the ledge. Get prone and it will be a great sniping location.

Above the bathroom in an invisible room where a piano can be clearlyheard being played on a record player. The piano can only be heard if you music setting in the options menu is on.

-Toward the end of the courtyard, go into the shack and turn right. Use the portion of wall that is jutting out to hop into the tree.

-There is a shack at the bottom left of the courtyard. Go through and keep going. Turn right and mantle over the wall. Turn right again and you should see boxes that you can climb. Climb on them and you will have a perfect view of the entire area.

When you have over 950 points, go to the door marked "HELP". There is a box on the far left that you can use to purchase a random weapon from.

-There is a platform/hallway that goes over the center of the map. To get to it, go behind the trashed locomotives. Climb up the staircase and turn left at the round platform. You should have a decent view of the whole roundhouse in the middle of the map.

-There is a crashed locomotive by the ladder that leads to the platform. Crouch inside and you can snipe without anyone noticing.

-On the other side of the platform you'll find another crashed locomotive. Do the same thing as above.

-Go up the stairs that leads to the platform. At the top, instead of turning left, turn right to see a hole. Crouch and go through the hole. You should be on a train. From here you can kill people going up the stairs to the platform.

Input any of the following values into the "map [map name]" or "devmap [map name]" codes:

MAP - CODE
Semper Fi - mak
Little Resistance - pel1
Hard Landing - pel2
Vendetta - sniper
Their Land, Their Blood - see1
Burn 'Em Out - pel1a
Relentless - pel1b
Blood & Iron - see2
Ring Of Steel - ber1
Eviction - ber2
Black Cats - pby_fly
Blowtorch And Corkscrew - oki2
Breaking Point - oki3
Heart of the Reich - ber3
Downfall - ber3b
Nacht der Untoten - nazi_zombie_prototype

-There is a bunker/cave in the upper left corner of the map (second row of buildings) that offers a clear shot of enemy respawn points and has good protection from tanks. Make sure to use Bouncing Bettys to protect yourself.

-On the Nazi side of the map, near the Reichstag, go the to building that is cut in half. Go around to the room in the back. Walk up the slant and onto the top platform. Once up, you will see three boxes stacked on top of each other. Climb over top while staying close to the ledge. Go across the thin wall then go around a ripped wall section. On the other side you should see a table. Go on top of the table and snipe the enemies down. Note: This may require several attempts

Start any sort of Nazi Zombie game and unlock the door to the Mystery Box room, then g to the Mystery Box. Go over to the right and look at a table to find a radio. Shoot a bullet at the radio then wait a few seconds. You will hear random music such as rock, disco, opera, and some in game music such as the Russian victory song, the last level music, or the Japanese combat music. The music will stop in between rounds but will then start again. Every player in game can even hear it.

Go directly to the wall by Target A in Search And Destroy mode and locatethe blood stain. Sprint in and out of that corner repeatedly until you fall through. Duck down and crawl through the gap and you will now be under the level. From here you can kill people but they cannot get you. Note: You cannot toss grenades through to the level. If you want to get out of the whole level instead of just go under it, walk backwards towards the wall on your right. You will pass through. Do not go too far or you die. From here you can see through nearly all walls and kill people without being seen.

Collect the Death Cards at the following locations to unlock their benefits during Co-op mode:

Thunder
Level: Semper Fi (Eight of Hearts)
Effect: Headshots cause enemies to explode.
Location: At the very beginning after leaving the shack, you will see another shack to the right. The card is inside.

Hard Headed
Level: Little Resistance (Four of Clubs)
Effect: Enemies take less bullet damage.
Location: At the end of the level before going into the last building, look to the right. The card is in a corner of bushes.

Suicide King
Level: Hard Landing (King of Hearts)
Effect: Fire explosive pistol rounds while downed.
Location: About halfway through the mission you will see a big building with a mini-trench outside. Enter the building and go into the lower level. The card is to the right when you go into the room with the stairs.

Cold Dead Hands
Level: Vendetta (Five of Diamonds)
Effect: Enemies take their weapons with them to the grave.
Location: After the sniper section at the first part of the mission, Reznov leads you through a building. Follow the bar around to the end to find the card.

Sticks & Stones
Level: Their Land, Their Blood (Joker)
Effect: Your weapon arsenal consists of a knife and rocks.
Location: Destroy the tanks and go through the barn. Search the stalls to your right to find the card.

Vampire
Level: Burn 'em Out (Queen of Hearts)
Effect: Can only recharge your health by getting kills.
Location: Just before the second mortar position is a bunker to the left. The card is inside.

Flak Jacket
Level: Relentless (Nine of Diamonds)
Effect: Enemies take less explosive damage.
Location: At the end of the mission, take either the left or right path. Eventually the paths will reconnect. The card is about half way down the path.

Body Armor
Level: Ring of Steel (Jack of Spades)
Effect: Enemies die by headshot only.
Location: Enter the asylum, the immediately go to the left. The card is in the far bottom left corner.

Undead Soldier
Level: Eviction (Ace of Spades)
Effect: Enemies come back from the dead.
Location: During the first half of the mission, just after the kitchen area, you will eventually see a room to your right that has a large hole in it. Drop down to find the card.

Painkiller
Level: Blowtorch & Corkscrew (Ten of Clubs)
Effect: Shoot downed Co-Op teammates to revive them.
Location: Go to the left as you move toward the second bunker. A Japanese soldier hanging upside down is near the card.

Berserker
Level: Breaking Point (Three of Diamonds)
Effect: Get three kills in five seconds to become berserk.
Location: Clear all of the four mortar pits, then go to the small shack in the south of this area. The card is inside.

Paintball
Level: Heart of the Reich (Six of Clubs)
Effect: Paintball guns.
Location: The card is in the closed-off subway entrance across the street from the start of the mission.

Victory
Level: Downfall (Two of Spades)
Effect: Limits your HUD, turns on friendly fire, and bleed out in half the time.
Location: Before you get to the theater, some of your allies will break through a door to your right. The card is past that door.

Activate the ufo code, clip through the wall, and you can now enjoy killing zombies outside the house.