The Ultimates, Vol. 1 #12 (2003)

Persons Of Mass Destruction
Cap's team is out in full force, though they're lacking the air support that was promised. However, when you've got Thor and Iron Man in the air on your side, you don't need a lot of conventional air support. Still, between the sheer numbers and the firm deadline of an active doomsday machine, that may not be enough. They decide to unleash the most powerful weapon in the American arsenal: a neurotic physicist with anger management problems.
Release Date: 2003