[Mobhack]

A) wont be able to add EW so the missile will be a wet noodle when planes carry EW.

A) may well react oddly in reaction fires since infantry units aren't meant to have SAM (though some OOB designers have added MANPADS to special farces teams, regardless). Especially - the AI may well have any such wandering about the place like regular grunts do, and not halted in overwatch positions, so useless to it.

Option a therefore is not really supposed to happen.

B) Is what MANPADS are meant to be. It is a bit less survivable than a para if thrown out the back end of a perfectly useful plane while dangling off a silk hankerchief, but then again any electronics you dump out the back end of a plane will suffer from such an event. Just look at the problems that Rapier had with being stored in ships cargo holds for the voyage down South.

There are no "para ATGM" or "para SAM" classes. Lets face it, paratrooping is a sub-sub-uber rarely utilised niche these days, and any support troops are far more likely to be helicoptered in post an infantry para assault on say an airfield once its relatively secured.