Wes, I'll give a small tip. Practice offline. get a feel for the gun site and distances. I hate driving tanks and GV wars for long periods but sometimes its necessary to defend a base from capture. I was never a good shot with any of the tanks. But over the last couple of years, with lots off practice offline and lots of dieing online I can now get some good shots on stationary targets and also while I'm moving and while shooting at moving targets.
Go offline and practice. start with any tank doesnt matter, personally I started with the Panzer. Pick one of the tanks on the base. drive up to it and line up on it then drive away a few hundred feet. Keep the turrent facing to the rear. stop every few hundred feet and take some shots. keep this up, just go out as far as you can. practice from different angles. After awhile you'll get the feel for the "sight Picture". Once you get good with that then practice firing while moving. drive out away from the tank and then turn back and fire at it while moving up to it. change directions and shot angles. I would suggest starting with the Panzer, then the T34 and then the Tiger. Each tank has its own quirks and effective ranges and "sight picture"
this may or may not help you but it will take some time
and the only time I use a MG against another tank is when I want to annoy them

fill their headphones with pings
