In addition to leading the G.I. Joe DEF (Drug Elimination Force), he is also an official federal marshall. Before being assigned to the G.I. Joe team, he served with the Drug Enforcement Agency in the Caribbean, the "Golden Triangle" and Central America. His code name resulted from his enemies, as they observed how he remained unscathed while leading his men through firefights.
Bullet-Proof's first figure was released in 1992 as part of the Drug Elimination Force sub-line, and was re-released in 1993 (with yellow camo instead of tan) as part of the Battle Corps line.
In the Marvel Comics G.I. Joe series, he first appeared in issue #124. He also appeared in #125 and #127. As part of the DEF, he helps eliminate the drug trade from the town of Broca Beach without realizing the entire town was a Cobra front. The DEF also confront the enemy operatives Headman and his Headhunters.
Animated Series History
Bullet-Proof appeared in the two-part episode "The Greatest Evil" (1991), from the DIC version of the G.I. Joe: A Real American Hero cartoon series (1989-92). Here he is central to the story, as he helps convince Lt. Falcon to check into rehab after talking with him about his addiction to the drug "Spark", as well as help lead the attack on Headman's mountain fortress (where Spark is produced).