On GV's I can only say:
HE shells should be the equivalent of a 1000pnd bomb against ANY structure.
AP shells have to be looked into. A Pznr can pop 15 rnds into a flaktank at point blank and not kill it.
Or perhaps its the armour? Dunno.
M8 has to be seriously revisited. I can kill it with 50 cals.
Bushes and sheep should lower the speed of a vehicle as it passes over them (say, lose 10mph?... ya I know, just think they are BIG sheep). Trees should bring the gv to a complete stop. No more of this ground clutter-touch-o'death syndrome.
GV's should DIE from ANY 500pnd+ bomb that falls within 5 meters of it. RL it would flip that gv or vaporize it. In AH you can drop a whole stick of 1k bombs from a b7 and watch them blow a few ft from the pzr and the dang gv keeps moving and shooting, undamaged.
Flaktanks killing Pzr's from long range? what?
Trees and other terrain should HIDE the gv from airplanes. Maybe have HT make the GV not be able to be seen from above unless the gv is in open terrain or inside its icon range? (aka, beach, sheep field, anywhere where there are no trees).?
SMOKE: Allow ALL vehicles to have smoke. The smoke should be 30 ft high and 10 ft wide imo, this would help vehicles use smoke to screen them from air attacks as well as other vehicles.
Add Mannable AT-GUNS around the fields and towns. A nice Pak36 or SAMLE gun would be quite fun to smack around