Bradley CS: how about M202 flash rocket in the TOW pods?
I'm realy one for flame warheads for suppressing infantry... (ingame, I mean)
AH64D COIN: Best way would be to keep the 30mm, add pod-mounted MiniGuns with large loadout, and maybe thermobaric FFAR? Or replacing H-fires with Israeli laser-guided Mapats TOW (though you'll only get 8 shots anyway)?
BTW, how about a missile- or rocket-firing gunship? Maybe that was tried in the late Vietnam era?
M1A3: please... does the name relates to anything official? I personnally was going for -A3 and -A4 interim upgrades besides the Reaganian "Tank block-3" behemoth in my cold war mod, so if there is anything real called like this... I would be really relieved to be able to use the name freely.
Now 140mm (classic CE or ETC?), ERA allover, AGL OHWS... and how do you move it?