I just like playing a Titan because I've always played support in other games. I think it's the best roll. I prefer to either take out mid tier-low tier enemies as fast as possible while my squishier friends take out bosses and majors. If I'm going down the Disco Bubble path, I usually generate orbs of light with melee kills and my super. I just feel like the only class done correctly was the Titan's two subs and the warlocks Sunsinger class.