I was trying to come up with a decent brawler which would have a LRM mounted for poking early in the match, and also avoid ghost heat from 4xSRM. The SRM4s and AC10 also have a similar recycle time for nice torso twisting.
It's a good idea. I think it needs work, bc no one wants to run a STD335, as it's an odd size. You are also using the wrong ammo type for the weapon. A simple mistake to correct, but I think I would go with something like this. A better engine, and more ammo to make your LRM's not totally useless.