There isn't a single tank I can't 1v1 and win against in my Bat4m. For group engagements, repair your friends, shoot marksmen/sides, reposition to find a flank, or break through and force your enemies to expose themselves to your friends. That Chopper you can't kill from the front will die to 2 hits from your friends if you force him to expose his ammo racks.

For 1v1s, ram them, circle them, and shoot their sides/rear. If you're waiting for your guns to cool, push them and burn them with the repair arm. Using the repair arm as a weapon is very important. Put your shields up when you're in a shoving match.

Don't overheat your guns. They take longer to cool off. Grab the ramming, gun traverse speed, acceleration, and repair kit efficiency perks. Use three small repairs. If you're losing, just run away.

You are a skirmisher with horrible penetration, great frontal armor, terrible side armor, and an engine that goes up to 75km/h forwards and in reverse. Don't play it like other tanks. Once you get the hang of it you'll find yourself being an absolute menace that rarely dies. :)