A Real American Hero continuity - Devil's Due
Cobra Mortal is intercepted by the G.I. Joe team during the assassination attempt on a chechen rebel leader in Derbent, Dagestan. He jumps from the rooftop he's on, lands on a neighboring roof and runs away. Gung-Ho follows him, but when they have each other at point blank range, Cobra Mortal shoots Gung-Ho's ear. Gung-Ho answers by beating him with his rifle, but Cobra Mortal throws his shades that end being a concealed explosive device that allows him to escape. However, Wild Bill corners him at a pier and Shipwreck ambushes him from underwater, trapping him.
Cobra Mortal last appears in the final battle against G.I. Joe, being head-butted by Gung-Ho.