Funny I have all three classes and I think my warlock is useless I maxed out sunsinger and I hated it because I never died, and he straight up isn't fun to play with he floats about, but I think I'll like him a bit if the void walker becomes what I want it to be. I love my Titan his God and could kill a swarm of enemies solo or he could save a fire team. I'll admit no self-revive or invisibility, but truthfully is kill everything so you don't need no hide and be good enough not to die problem solved.