The Hellhound variant of the Chimera replaces the troop compartment with a well armoured fuel tank and a strong enough air compressor to spray said fuel well over a hundred meters.
Makes a good substitute for the Malcador Infernus, although its weaker armour and integrated fuel tanks does make it a more desired target among enemy AT gunners.
I found the body to be an easy job, but I got stuck on the turret and gun for a long time. I'll probably try some thicker armour for the turret, but for now I'm calling it good.