Battletech

So, my thought goes like this: ENE mechs get extra safe-spots on crit-tables, but kin/msl mechs get no bonuses whatsoever except an infinite supply of ammo. Would it break the game to, say, give the King Crab something like:

AMMO3(+2,+2,+1) and have it's base damage brackets where the AC20 and LRM applies lowered by one. This gives the KC 3 turns where it can increase short and medium damage by 2 in 3 separate rounds of combat. After all AMMO has been spent, treat the mech as ENE.

Thoughts?