First of all I really enjoy playing your game!
I just want to adress a matter, that's really annoying (and also was in the first part): picking up stuff from the ground is a real pain in th a... I see so many people die because they are not able to easily pick up a grenade and therefore have to try a dozen times until some enemy comes along and kills them in the attempt. Happens all the time! Myself included, of course... This is not a matter of player's skill. The pick up just does not work properly.
Another bug (I think it is one) is, that you do not start with full ammo when using a shotgun. You always have to run to the car in the beginning of a game to get from 41 shots to 49. This is also annoying...
Thanks for listening and for the graet game!