I honestly don't think Titans are underpowered, I feel the problem is warlocks. They get an exotic which should is built around the Titan. Said exotic, allows them to dominate and have the most of TWO stats. Titans should have the most armor, hunters agility, and warlocks recovery (which is already one of the better base stats, only being outclasses by the ram's armor, allowing users to survive abilities that would've killed any other class). The warlock already excels in every activity, especially crucible. Having the longest melee, over shield on hit plus burn damage. Some of the best grenades (which can burn based of perks, and allow a tickle to kill, or they have the choice for two grenades, which the Titan has to give up an exotic slot for). Not to mention self rez, which might not shine in crucible save trials, but it allows a crutch in any endgame content. The nova bomb is ranged fist of havoc, which allows better control and placement. While fist of havoc can be used as a panic super, nova bomb can as well, just not as effectively. Not to mention blink, I do acknowledge that the blade dancer does have blink as well. In conclusion, it simply feels that warlocks outclass every other class. In both PVE, and PVP. If the warlocks melee range was reduced, or the Titans increased, as well as Titans armor providing a noticeable difference, and changing or nerfing the effects of the ram.