Wacky Waving Inflatable Arm Flailing Tube Man... Because you play this mech with no arm lock and the hands are very fast. The reason why I think it's an improvement over the classic 4xcERSL + 8xcLMG is that it mounts everything on the arms AND you have a better range, which means you can apply full damage at 250-270 meters instead of 200-250, which means you are not forced to brawl to apply full damage, but you can stand on top of a building or poke from a ridge with no issues. For pure and simple DPS and heat efficiency, though, the 4xcERSL is still better.