Actually I disagree with you both (not sure if Messor was agreeing or disagreeing), it has been shown several times even way back in Alpha Flight vol.1 he had a dark past. Even after vol.2 he became an alcoholic, formerly a demon inside him and recently got back from Hell.
We know in his past he was a mercenary and has fought in the Tonkin Gulf, has ties to the Russian KGB, fought in Maracaibo. He is friends with Domino and Taskmaster and various other mercenaries. Guy does not have a clean past.
Heck, he led these guys remember?
http://alphaflight.net/showwiki/Outcasts