-Jump on top of an enemy's head and kill them, then stand still. If they do not immediately move when they respawn, you will be on their head again, allowing you to kill them easily once more.
-Try to surprise your enemies instead of camping and waiting for them to move in your direction. This is a great way of defeating your opponent. When you see your opponent moving in a specific direction, always go the other way while being unseen as you backstab them. Note: Using a knife is recommended.