Well, PGI, way to completely obsolete the Black Knight. At least we get a dual Gauss Stealth Armor mech out of the deal.
I think you'll run into a crit problem with that. ECM is in the side torso on the Thanny in MWO. Then you need two more slots for stealth armor, and then a Gauss rifle. Thats 11 Crits.
That means standard engine only. In MWO, that is going to run you too many tons to have any meaningful ability to re position. Snipers that can't re position.....well, you know what happens to them.
I'm sure some pilots will try this build, but I don't think a Stealth armored slug with two gauss rifles is going to be fun to pilot. When those 8 LMG Mist Lynxes find you, you'll be tearing your hair out.
Just my .02 cents!