Have two players so that one can rack up kills. Have one of the players immediately go for the time bonuses instead of getting too caught up with enemies. Get about five minutes worth of time. If you can, collect the combo time to rack up some serious points. Then, meet up with your partner and find a good place to hold out and accumulate points. Every level plays out differently and can be more difficult than others with this strategy. Try making a route for each time bonus. Note: If you are playing on "Public Assembly" or "Ship Deck" do not find a hiding location. Instead, move and kill or the chainswaw Manjinis or executioner will catch up to you and kill you.