Claws as you know need fixing Needs varying zombie spawn dependant on map Knock-back is very hit and miss And I think the prop killing is gone now, as Teddi toned that down massively so a single bullet doesn't hit a barrel like a freight train. You have to mash E now to move a prop.
Zombies should move a little bit faster or guns should have slightly less knockback. Zombie attack animation should be faster. P90's iron sight/scope texture is missing.
I think the p90 / awp share the same scopes, so I'll get those on the FastDL soon. The thing with knockback is that it really doesn't take that much to get close if you're clever about it. Remember people have to reload as well. Plus once I've released the mother Zombie that'll make for some interesting gameplay.