I loved being the last guy alive on the researchlabs map. I was using the rifle in the window and had a magnum too. I ran in and grabbed the satchel charge and plopped it in the hallway. Nearly towards the end, I was in the window firing out. I dropped back because I was low on ammo. One made it into the room and killed a guy with a shotgun and it fell on me. I emptied my rifle at him, killed him, and pulled out my magnum. One other dude was left, he just had a pistol. Two more zombies rushed into the room and started killing him. *BLAM* blew one off him. *BLAM* blew the other. Reload. The dude grabbed the health and tossed me a box of shells. I went into the hall and another group came, *BLAM* *BLAM* *BLAM*. THey were nearly done and I was almost out of ammo. Down to my magnum, and I had barely any ammo for it. Suddenly there were seven zomies around me, zero reinforcements. I stood on the satchel and the guy started yelling 'BLOW IT BLOW IT BLOW IT BLOW IT!, pulled out the detonator, and pushed.
Survivors Win