ok after playing KF for quite a while online i found a few things that could be better
1: when in the trading phase there should still be some zombies around, way less than in the waves, but still a few small groups of those easy zombies (or zomboys?
). it was kind of immersionbreaking when playing on RO_Zombiehog.. erm i mean KF_Farm. you are totally scared, everywhere are specimen and then BAAAM. everything ends and you run 300m to the tradingpost without watching out even a little bit
2: some achievements dont seem to work
3: Hit detection: sometimes i clearly shoot at the head and dont get a headshot and sometimes a dont even come near the head and get a headshot
4: the boss is a bit too ultra - cool - cheesy
hes not as scarry as the other specimen, even thoguht hes stronger
5: somehow improove the crossbow, i dont see any use in it
scince the winchester is just as accurate, and way more useable
6: please if zombies cant get throught a door, make them go somewhere else
7: and the last suggestion (and the most important) is that the whole devteam should get a small vacation (yes i, as your master allow you that, my fellow slaves
) for doing AMAZING work 
cheers
1: when in the trading phase there should still be some zombies around, way less than in the waves, but still a few small groups of those easy zombies (or zomboys?
2: some achievements dont seem to work
3: Hit detection: sometimes i clearly shoot at the head and dont get a headshot and sometimes a dont even come near the head and get a headshot
4: the boss is a bit too ultra - cool - cheesy
hes not as scarry as the other specimen, even thoguht hes stronger
5: somehow improove the crossbow, i dont see any use in it
scince the winchester is just as accurate, and way more useable
6: please if zombies cant get throught a door, make them go somewhere else
7: and the last suggestion (and the most important) is that the whole devteam should get a small vacation (yes i, as your master allow you that, my fellow slaves
cheers