Can anyone give me some help in black ops zombies?

all you got to do knife until round 5 or 6 and try to get the other 3 ppl to open the top door that leads to the stakeout but dont get it get the mp40 then when you have enough money that when you open a door you will have 2500 go get juggernog then link the teleporters and chill in there then when it gets to crowded with zombies teleport (if ur teamates dont go its cus there stupid) throw grnades and after it teleports again shoot zombies until it gets crowded run up the stairs and keep running and dont stop moving but luk in front and behind u once in a while then when u get crawler go to the mystery box an by the time u get there u shoukld have enough money to upgrade the gun u get then complete the proccess of running around and linking the teleporter. (a glitch that actually works on the xbox 360 ((i dont know if it works on the wii or ps3)) is when u go to the mystery box go prone shoot the box 4 times then open it and u should get ray gun.) also if u noticed or not the question marks on the mystery box glow when it glows the brightest open it and u will usualy get a ligh machine gun hope this helps