Here's a slight variation of the Atlas-S build I had posted in the other thread.

Basically the same but stripped the armor and ammo down a bit to fit a larger engine ( STD 340 vs STD 325 )

As Ranger5 said, chain-firing the SRM isn't bad on heat and the Gauss is always there for when a very low heat weapon is needed. I suspect this mech will be even better after the quirk system is implemented as PGI has indicated a willingness to toughen the Atlas side torso internals for better durability.

Robots are stealing my luggage.