Excellent game.
For those having trouble with ammunitions and reload time. I found it easy staying in the bathroom after getting TMP easier. The zombies on the bottom wouldn't be able to get you cause of the couch obstacle. Only worries would be the spawn on your right. After a while the spawn would completely stop and they'll just wonder around the couch. Then you'll be able to freely shoot your way to victory.
From the method i used
Only taken 40dmg and had a good 90% Acc
On the highscores DriX ^^
~Great Game