These are really great. I’d like to think that the humans could have their research building be the tower, and you could choose between a Titan, Hunter, and Warlock. Titans could enable troops to do more damage and resist more damage Hunters could increase unit speed and line of sight Warlocks could improve building defense and speed up leader powers Heroes could be the vanguards, with each vanguard improving their guardians class. (Cayde would provide a major buff to hunters, and minor buffs to the other classes.)