One thing I think would improve BA RRs if they could use the different ammo types available to them in the RPG (missiles are another item where these could be useful).
Like Anti-personnel, Anti-vehicle, Flare, Flash, Gas, HE, Inferno, Smoke and Stun
Medium and heavy could also use FASCAM rounds.
Anti-personnel = -1 damage for an extra D6 of infantry damage
Anti-vehicle = Removes the anti-personel attack for a +1 or +2 anti-armor attack
Flare = illuminates a hex and it's ring around it at night for 1D6 turns
Flash = not sure what to do (most vehicles are resistant to this type of round and infantry all have protective measures -might be useful on civis...).
Gas = nuff said
HE = Unknown (perhaps it being regular ammo?)
Inferno = each hit counts for half an inferno round (round down)
Smoke = places a light smoke hex in the target area for 1D3 turns
Stun = Like Flash I do not know what to do with this one
FASCAM = Places a minefield in the targeted hex with the base damage of the weapons regular attack (i.e. 2 or 3 damage).