Arma 2: OA (M32 Launcher)

[Chaingunfighter]

I was looking in the ammo boxes and found that there's an M32 and another grenade launcher in the US Army Launchers box.
Does anyone know what class of soldier starts out with it or is it something you can only get from there?

[That guy]

there are no soldiers that are equipt with m32 by default.