I disagree with his opinions on HEAT main guns. It's nice that it makes infantry easier to hit, and compensates for lag (which is a big deal sometimes, hell I can't even run over half the infantry I try to roadkill thanks to it). But as someone who spends a LOT of time in a Magrider fighting heavies hiding in rocks the real value in it is indirectly hitting people behind cover with the splash damage. My only problem with it, as he says, is I don't instagib ESFs with my main gun anymore.
I have no trouble killing tanks with the supernova VPC thanks to magboost allowing me to always get their back, and when I buy my Saron on Friday it'll be even easier. I still might invest in the AP main gun for situations where I ONLY have to worry about enemy armor...happens occasionally. TR hit the Crown with something like 15 prowlers last night, for example.
HEAT is ok when you don't know what you'll come across as it's an in-between. But when you're facing vehicles, AP tears things apart. Granted I use a Vanguard, but it's AP is brutal when you have side and especially rear shots on the others. It crushes lightenings with impunity.
As someone who played a lot of tank games, including WoT, I've learned to always face the opponent with the thickest armor. I pushed up to the crown earlier against 5 magriders and a couple lightenings alone with 2 engineers helping out along with infantry shooting off rockets. I put additional front armor on which people criticized me for, until they saw what I did with it and the shield.
Downside is that with AP I have to get a dead on shot on infantry, but that's what my secondary gun is for. People just think flat out DPS is the way to go, but infantry can ruin your day, and thus it's important that I had the M12 put on as my gunner can mow them down while I deal with armor.
Love tank battles.