So right now I can see zerk and commando getting the most changes (especially commando). Commando is fairly useless for his first ten levels on any difficulty above normal. Everything that made him good in the first game is locked behind perk skills. His level up stats don't really add anything that the other classes don't get. I mean, while seeing stalkers and health is nice. He doesn't have a lot of team contribution until he is really level and can kill trash mobs very effectively. He desperately needs recoil reduction added back in and have it scale with level. Either that or adjust the recoil on his weapons because the ak's and scar's is god damn ridiculous and not viable on full automatic. His starting weapon is literally the worst out of everyone's because the damage is awful and the burst is laughably slow. Also some of his perk skills don't fit his class, why oh why do I want extra pistol and knife damage?
Doesn't it only take 1 bullet to blow the head of the easy zeds anyway with the starter rifle? Seems dumb to even bother with burst fire when it's just a waste of ammo for those early waves.