The doubly infected XL version of YoMama Crabs (somebody should probably test it because I don't have this variant)
I sort of dread to ask but.... why? Four totally different weapon systems with different ranges, projectile speeds and an IS XL engine with a gauss. On the good side the ammo isn't in the torso's. Why would an opponent just not shoot the gauss to kill the mech?
Actually in this case you would WANT the Gauss ammo to be in the side torso to crit pad the spillover from Gauss explosion. But yeah I would not run it this way. Gauss and the LL spells long range, yet for LBX and SRM you need to go close. Getting an XL with gauss at brawl range is a bad idea.
The idea was to poke at midrange with the Gauss and LL then obliterate the exposed components in one shot with the SRM+LBX. Sort of like a sniper misery and an Atlas S all-in-one. I personally don't have any issue brawling with a Gauss, nobody shoots arms on a crab, and the internal HP of the arm will most likely absorb the full crit damage from the Gauss if it was hit anyways.
Well I see a gauss KCB and I always shoot its gauss arm as its lethal and they almost always shield with the arms....