So, I played about one hundred hours in Space Marine II and cqc in pvp mode sucks, there's no punishment for the battle in melee. Good example is Warhammer 40,000: Eternal Crusade, I know, that it's two diffirent games, but Warhammer 40,000: Eternal Crusade closed and you can take some good Ideas from it, or you can take your parry mechanic from pve, it's seems more fair this way.