Messinian

Could anyone explain to me the differences in the main non vip classes? the 3, Hunter, Spetsnaz, and Escaper. Thanks and Zombies should be made a little more op I think like you should add more weapons for them such as an axe or some more Melee weapons. Maybe even a Katana would be cool for zombies. Also can you add it so classes start with an SOG knife or something for knifing purposes?