Okay lemme give you my opinion on this matter. First off, Swordmaster has True Vampire which restores hp to full, and no other classes have it. Second, PvP and GWH are basically the same. You hit others, you try to kill them and they try to kill you. Third, you dont fight a mage with a berserker. The reason being, mages can blink away to safety. Suppose they do give you a crowd control immunity. Then what? Mages can just kite you and start hitting after the immunity wears out. Fourth, berserker is arguably one of the, if not the STRONGEST class for PvE. Wouldn't be fair if berserkers can excel in both PvE and PvP. That is all, and fyi i am a berserker main.