I'm going to play warlock and keep an eye on the titans. I usually play a tank style character in RPG's but in the beta I found myself at a revive screen all too often with the Titan. I appreciate the shield is supposed to take care of that issue, but I'm not sure how fun the defensive role will be when all the lasers and bright shining things are going off all around the show. So looking forward to jumping around dropping nova bombs and flashie grenades.