I've been playing around with my suggested changes and I like them, but I'm still not quite getting what I want. The biggest problem is still the damage allocation table and the number of dice you roll for hits. As it stands now you roll 2d6 for frontal shots and the one that is the most advantageous to the defender is used. This still keeps armored combat to a slugging match as it's nearly impossible to roll two sixes on 2D6. You still get an abnormal number of stun results and weapon outs which, at times, makes head-on shot kills nearly impossible. So here's another change:
Frontal shots roll a straight up 1d6.
Flank shots do the same but add +1 to the roll.
Rear shots are the same as flank shots but at a +2.
That, along with the bonus from additional hits, should make armored combat far more deadly for AFVs. I'm going to try this out in my games and see how they work out. Hopefully my MBTs will start scoring first round kills on lightly armored APCs... for once! 8D