All Terrain Heavy Enforcer/Legends

The All Terrain Heavy Enforcer was a military Walker made to complement the AT-TE during the arms build-up to the Clone Wars. It was designed to have a more upright stance, similar to the AT-AT, thus getting a height advantage over the AT-TE.

Behind the Scenes
In concept art drawn for Revenge of the Sith, several walkers similar to the AT-TE are shown, with taller legs and heavier weaponry. Because of the added height advantage, some fans speculate that these illustrations portray the AT-HE. These walkers may carry heavy fire power, including two heavy laser cannon on top, two light "chin" blasters, and eight anti-personnel blasters, four in front and four in back. This would make the AT-HE a walker of non-trivial size, and close in terms of general firepower and capacity to the AT-AR or AT-AP. There is some speculation that the heavier blasters might compare with those of the All Terrain Armored Transport.

However these unfilmed walkers are only in the medium mass range, much less than a truly heavy walker like the AT-AT. This distinction disqualifies them as heavy walkers. This evidence weighs against speculative identification with AT-HE. The tall AT-TE variants deserve a name, but perhaps not as grandiose as AT-HE.