Titan walls are just insane, you shoot one down and they are placing another one. Not only that but overshields, invis, warlock suckers. Abilities and and how exotics work with them needs to be looked at. With how often hunters can dodge, if they use the wormhusk helmet they should not be able to spam healing every dodge. While Titans walls are still in play the cool down for their next wall should not start or should be much slower until that initial wall is destroyed or times out. Titans should get their initial overshields on wall placement but should not be able to engage, loose their fight run back to wall for another overshield just to engage again. It creates passive play and creates a huge disadvantage for others. Same with rift and dodge while rift is active or hunters are invisible their ability cool down should not start.