Barrage of rockets

Answer from: Player
They probably bought credits, upgraded and unlocked everything so now they are overpowerd

Answer from: commander433
Ok so there is an upgrade page where u can upgrade ur tank. that is probably where they bought their upgrades

Answer from: jimi
It makes them stronger when they buy the macanic upgrade because their tank heals itself

Answer from: digitalphone
Flamethrower appears to kill rockets but YMMV. Airstrikes also put the hurt on d-bags like that and of course you could always try a different map, since generally it appears that "most but obviously not all" of the AFVs on any one map are relatively close in capability.

Answer from: digitalphone
Correction - Flames don't appear to affect shells. On topic - Don't waste ammo on a newly appearing tanks. For the first second or two after solidifying, shells have no damaging effect (Kudo to the developers for creating something that gives new arrivals a fighting chance when they appear mid-game). Conversely if you're newly arriving, you need to be pounding on the fire button to clear an escape path through the waiting vultures. Flames are better. On the field if a tank has a fat health bar and you have a popgun expect to spend most of your time practicing the Parthian shot, even if you are of FM rank.