dude !!! i just made it to lvl 21 by myself on shi no numa it was freaking awsome my friend came over and was like lets kill some zombies then he started playing my guitar and was like take a warm up round and like 30 minutes later it was round 21 it came down to dogs and i had thrown a grenade cause my 42 just blasted out of ammo and a dog was on top of me i ran out while i switched to my ppsh and boom i ran into my own grenade!!! im still a bit sad about that but over all it was FREAKING AWSOME!!!