http://forums.steampowered.com/forums/showthread.php?t=757550&page=7


This topic explains some complaints about killing the tank with fire(molotov) and killing the tank with guns.


It seems that if you light a tank on fire and just run away, the tank dies in 30/40 seconds. THIS IS A TESTED FACT.

You can also shoot him to shreads, but who cares about wasting ammo if you can just light him on fire , run away and then wait until he dies.

Its:
30 seconds and 4000 health on Normal
35 seconds and 6000 health on Advanced
40 seconds and 8000 health on expert

Burn and run is the safest strategy, but can be slower. Gunning him down can be faster if all four players keep guns trained on him and no one goes down. It is also much riskier.

The tank also does not take extra damage for head-shots. He is a muscle freak and does not actually use his head.

Great tip!