Ok, here are two of my strategies

-First:
You stay in the main room for the first 5 rounds(till that round 6 pops up OR when you need to get space from the zombies).

For the first 2 rounds you only knife

The third round: put a clip into the zombie then knife two times, and it SHOULD die.

The fourth round, hopefully you had a max ammo, keep the pistol and improvise from there. If not, you get the M4A1 Carbine.

The fifth round do what you have to do, can't really give any tips.

Soon as you are done with that, you open up the help room and whoever opened it gets to try first at the weapon because of common courtesy and he will most likely get a good weapon if he runs over RIGHT AFTER HE OPENS THE DOOR. The mystery box is all about timing.

Now, the people with browning, MG, and ray gun get the front, but that is for the later round (10+ )

You can go with a trench gun till then.

Now the staircase IN THE HELP/HELL ROOM you will open that and take a left and run straight into the doorway and run to the grenades. YOU DO SO WHEN YOU ARE ABOUT TO BE OVER RUN SO CHECK FOR NUKES AND WHATEVER YOU CAN TO STAY ALIVE DOWN THERE BECAUSE IT IS HARDER TO STAY ALIVE IN THAT CORNER.

REMINDER: For this strategy, by the time you go up the stairs, everyone needs a good weapon and a weapon with ammo, so don't waste a lot of ammo on trying to get up there. Try to lure them around stuff and delay them and turn around and shoot them in the head.




Second:

The first part of staying in the main room is the same, but you open up both staircases and stay in the help room and just keep buying weapons till you have the best and then you have to improvise from there.


Thank you for reading and good luck.

Tell me about how it worked out, and about your own strategies!