Based on something I just noticed in a MegaMek game that struck me as odd but may in fact be correct: if hardened armor (TO p. 281) is struck by an armor-piercing shot (AP autocannon ammo, tandem-charge SRM, and so on) and a chance for a regular penetrating critical hit (i.e., one simply based on hit location) comes up, does the armor's usual -2 modifier still apply to the roll for that or should the armor-piercing properties of the attack cancel that modifier as well?
As written, it seems a bit ambiguous. On the one hand, the rules text doesn't say the penalty is explicitly negated; on the other, we're told that against hardened armor such attacks "deliver their damage as if they were standard weapons hitting standard armor", and there's technically no penalty on penetrating critical hit checks in that case.
