I've been rocking the damage with my Roughneck-1B.
It's a Light Mech Hunter.
280 Engine, Max Armor, 3x Light Machine Guns, 1 ER Med Laser (Head), 3x Streak SRM 4, 4 tons SSRM ammo in Legs, 2 ton Machin Gun Ammo in Arms, Laser AMS, and Beagle Probe in CT. Rest of Tonnage is double Heat Sinks.
This beast usually chases the little'uns away.