Mammoth tank vs. vehicle armor is 66% more effective than a heavy tank, very effective in stripping armor!
BUT
Mammoth tank vs. vehicle health (stripped of armor) does the SAME damage as a heavy tank, not more!
Not sure if this was intended by the devs. If you are a mammoth supported by a couple of friendlies, be sure to target vehicles that have armor first! You do 66% more damage! Otherwise you are just a heavy tank in damage output.
It's not even +66% against anything other than ore trucks. Or stolen mammoths/MADs. It's only +33% against other MBTs, the APC and ML, and no bonus against light vehicles - which, yes, is intended. The mammoth honestly does not need any help taking out light vehicles, even phases.
Raising the "pure damage" of mammoths any higher than it already is will just make them even more OP. Just like heavies, they kill rangers and arties in 5 shots, and are just a few damage points away from being ab