k so you did that? if you did what i advised, youll no that theres five windows in that room, plus a door that says "Help" on it. the door costs 1k to open. the two windows in the far side of the room that are sorta vertical from each other, (against a wall) and zombies pour through there like non other. starting out, it takes about three to four chest shots to kill a zombie. (with the pistol) try aiming for once in your life and hit the heads. thats instakill for about two rounds. after round 4, buy the gun on the opposite wall of the stairs, this thing is way better, but remember to aim for the head. this saves ammo and takes em' down quicker. so pretty much run around the windows picking off zombies non-stop. dont miss a window. it could be the end of you. so hold off the best you can untill round eight. if youve made it that far, pat your self on the back and get ready to be amazed.
Go to the help door, open it and take a quick left. (when theres no zombies.) then pay the money for that little box. get the weapon it gives you, (itll be pretty good, usually) and start unloading on zombies. opening this door gave the zombies three more places to invade (they come throught the wall,) but gave you better weaponry. if you cant get a good weapon from the box, go to the far window and buy the thompson. youll be doing great about then. keep using the bow till you have a browning, and a ray gun, (should take you to round 12-15 oh, and the zombies start running on round six. then buy your way to the upstairs. you better have those weapons. if not, you. will. die.
you just opened up lots more places for invation. youve gotta worry about around 5 places (depending on your location) it may be four, or even 2. use the browning only, saving the ray gun. when you get in a tight spot, (zombies all around) take out the ray gun and shoot there heads off. all of them. no need to with that gun.do this untill you die. if your smart, youll get to round 30-35