History:(Avengers I#1.5) - The US military's Major Bowman was inspecting Doctor Doom's Flying Fortress when he was surprised by Doctor Doom himself, who captured Bowman and kept him tied up within the Fortress while he sent a robot duplicate of Bowman to lure the heroic Avengers into a trap.
(Avengers I#1.5) - While the Avengers stormed Doctor
Doom's Flying Fortress, Ant-Man came across the tied-up Major Bowman.
Surprised, Ant-Man asked what Bowman was doing there and where the Wasp
was, but a confused Bowman admitted he didn't know. As Ant-Man untied
Bowman, Bowman pointed out that they were being sealed in the room, but
Ant-Man proclaimed that Doctor Doom would not stop him or any other
Avenger. When Bowman questioned whether the Avengers were there, a
confused Ant-Man pointed out that "Bowman" had led the Avengers to the
Fortress, at which point Bowman explained that he had never met Ant-Man
before and that he had been a prisoner for hours after being captured by
Doom. The robot Major Bowman then appeared on a video screen and
confirmed the real Bowman's story before removing its rubbery face mask
to reveal a robotic Doombot underneath. The gloating Doctor Doom then
gassed the room, and when Bowman remarked that they were done for,
Ant-Man asked Bowman to get down as he took a pill that caused him to
grow to giant size, bursting through the ceiling. The two then escaped
the room, with Major Bowman commending Ant-Man's transformation into
Giant-Man as one of the most astounding things he had ever seen.
Giant-Man then rescued the Hulk, and Bowman followed them both to rescue
Thor and Iron Man. Hulk, Thor and Iron Man soon confronted Doctor Doom,
and the Hulk ripped Doom's head off, revealing another robot, as Major
Bowman, Giant-Man and the newly-rescued Wasp arrived to regroup. With
Doom defeated, the Flying Fortress began to scuttle and the Avengers
soon found an escape pod that they ordered Major Bowman into. Bowman
refused, insisting that he had a duty yet to complete aboard the Flying
Fortress, but the Hulk shoved Bowman into the escape pod and launched it
as the Avengers leaped from the sinking Fortress.