69 alpha with 62% (!) cool. eff. on mastery, this mech can just keep firing alphas, with a lot of crits too thanks to the shotgun. The only downside of this build is the LB20X ammo placement, but there's really no way to fix this if you want that alpha with that heat eff.
That's why i had LBX10 instead LBX20 so to place the Ammo on the same side, plus two additional ERML from the free weight on the other Laser side, in my Warhawk, when i was playing in the PTS some months ago. It's a nasty Concept with super brutal CQC Damage. p.s. i also stripped some Armor for a TC1 on the Laser Arm.
That is a great build for sure, with slightly higer alpha, but cool. eff. is 47%vs62% in this particular concept I tried to build the higher Alpha/cool. eff. ratio
Quick alt build, threw in some MPLas and put the tons towards ammo and a TC1. Great firpower, decent cooling, moderately quick package. Wish the side torsos weren't so prominent, this thing has serious Stalker-itis. Which is especially a problem if you lose your RT, which holds your ammo as well as your lasers.