rounds. first get 4500 points i know the vids say3390 but you need a good gun for ddogs first open the door with the ramp and continue to the power room press x on box activate pwer then retrieve weapon go back around to the start and go where you just where but take the catwalk across open the door run to the teleporte YOU DO NOT NEED TO LINK and crouch in the back dint wait untill the last zombie comes then kill it the rounds will go by every 5 seconds when you getdogs walk out the teleporter count to 20 go back in and kill the dog or dogs usually only three note you do not recieve max ammo. points. go to the quick revive drop down the floor boards and walk to the back corner look out the side gap and shoot all the zombies i used these in sync and got to round 51103 had 1029930 points and forgot to die to get them on the leader board turned my xbox off and couldnt be bothered to do it again i will soon though my gamer tag is ownage monky. :arrow: