The other thing i should mention is that the engineers look seems similar to that of the druids since its leather gear, that and i wonder for a weapon they only allowed a dagger and not allowed the use of 1 handed weapons like a mace or sword or a 2 handed weapon-staff, or they could have just removed the need for main and off hand weapon and just gave u a ranged basic attack using the engineers cannon, and their might be be but i haven't found it yet but engineer should have a knock back ability or something to give him back his range on melee enemy's, that's my thoughts so far.