[Warborn]

Mechs will not be in Planetside 2 at release, so there is no sense in discussing them in this thread.

Tank destroyers should be tanks armed with anti-armor cannons (do away with tank cannons that have a huge blast radius and are good against armor and infantry) and fighters armed with air-to-ground rockets (which should, similarly, have a small explosive radius to make them weaker against infantry). Synergy is what is needed. Combined arms. You don't need to make a new vehicle to accomplish the task of having something designed to kill armor, because the game should already have been designed with the vehicles given roles which depend upon the weapon(s) they are outfitted with.