Army Commander: Lefteris (Since I am the one that makes the choices and somehow have to include myself lol. That aside, many could fit into this category, which in turn makes it tougher, but I believe the specialities below are meer accurate for each one so I'll just leave it at that).
Lead Medic: SilentForce and Zeppie.
Moral / Hype Man: GDragon and DisneyPrince. 2ntyOnePilots would be a choice in here as well.