Problem is the very premise of the game - elite operatives doing solo missions in hostile land - will in one way or another make the whole stuff veer into, at least, John Wayne’s Green Berets territory, if not outright fascism.
Maybe if you play as rangers in some kind of a post-apocalyptic setting ?
THAT would actually be great.
But my dream game with this kind of engine and gameplay would be a completely bonkers, totally drunk game where you play as international operatives going against eldritch horrors in a Call of Cthulu-like setting, possibly in Afghanistan after the american offensive unearthed unspeakable horrors deep beneath the mountains.
I realize it would sell like, one copy.