I asked him about that not too long ago, as von Karma was not the only one who has considered him sketchy.

[Yeah, Dojima had his own reasons to ask Alvin directly, but it wasn't because he thought Alvin was suspicious]

He says the reason why his profile says that about betraying is because of his job as a mercenary. I don't know how mercenaries work, but it does sound to me betrayal and having to flip alignments with ease is necessary.

[There you go, some information about our fellow captive!]