* The Mega Tank is a bigger tank. Bigger is better, right? The mobility of it sucks, though.
* The Piperunner moves along the pipes exclusively. Remember the ones introduced in AW2?
* The Stealth Fighter is extremely hard to beat - when in Stealth mode, it can't be hit by Artillerly, Missiles, or anything except Fighters. It can attack land, sea, and air units, and does pretty big damage. It uses fuel quickly, though. This could be the new uber unit.
* The Black Bomb is essentially a guided missile or kamikaze. You move it to a square and command it to detonate, damaging all units within a certain radius.
* The Black Boat works as a Lander and carries two ground units, but it can also repair other units.
* The Carrier ship can hold two Fighters, and fire ranged anti-air missiles.