this tank mount a 14,7 mm russian made coaxial gun and an anti-infantry 81 mm mortar so the defence isn't the best but very effective for a veichle like this well for the fuel tanks: 1- the tanks is used during movement to the front when the tank arrive in the vicinity of the battlefield the tanks are ejected 2- even if ambushed and tanks are hit and explode the tank will not be damaged due to the heavy armor and a special electro valve that closes the fuel input from the external tanks if hit (the tank have a thin layer of electrical net that reveals bullet holes)
At least taking out the fuel in the “auxiliary” tanks would slow that beast down. Even if the tanks are self-sealing a good cluster of .50 Cals can bleed that tank dry, cutting range by half if not more. Also I thought that the engine was in the front and if the fuel combusts; the fire will be at the escape hatch in the back.
infact the 81mm mortar can shoot a extinguisher round to remove the fire in the rear area... my opinion is that will be a suicide to engage a tank with a .50 bgm barret because the first shot will attract the attention the second will reveal the sniper position and then you have to been lucky to shoot the third round !
I may just shoot the AA guns trying to get a partial firepower-kill, just as my “garrisoned” troops in hopefully heavy cover distracts your tank and escort, until the helicopters can hammer it down with auto-cannons. But I don’t know if I would like to go up against one of these tanks alone. lol