When You first start, half of you buy the Olympia (costs 500) and the other half buy the M-14 (costs 500).

Once you have saved about 2000 points, one of you go buy either the top or bottom door. If you went down, buy the MPL ( costs 1000), and if you went up, buy the PM63 ( costs 1000).

If you went bottom, camp on either side of that wall in the middle of the room. One half Guard one barrier, the other guard the other one. One Person On each side should kill the zombies coming from the lobby.

If you went up, go camp behind the gate. One Person guard the Barrier, one guard the roof, and the zombies coming from the hall. This should be a good tactic for a while ( this means both doors).

Once you have earned about 3500, open the next door (costs 1000). Go buy either the AK-74 or the Stakeout or MP-40 ( top costs 1000 and 1500, bottom costs 1250).

Once you earn about 4000, go buy the next door( costs 1250). Now you have covered alot of ground.

Remember, if the box is in any of these rooms, buy it!

Buy either the MP5K (costs 1250) or the M-16 (costs 1250). Now camp either in the middle of the stage and run around (only turn the power on when you need it!).

If you went top, open the door to the theater. Do the same as the others. Now when many zombies start coming, turn on the power. Initiate the pad and core. Now teleport (buy pack-a-punch if you can costs 5000).

You will stay up there for 30 seconds. Then you will return. Now start using traps.

Good luck!