Super Mutant Behemoth (Fallout 3)

Super Mutant Behemoths are a variant of Super Mutant found throughout the Capital Wasteland $$

Background
There are only five behemoths found in game, although reports of their sightings continue through dialogue among the Brotherhood of Steel. Killing all five behemoths will unlock the achievement/trophy, The Bigger They Are.

Appearances
Super Mutant Behemoths appear in Fallout 3.