I usually run the 733 as Missile Boat, but now things have changed since i streak a lot with my Kintaros. I proudly present you the Streaklander! Tons of Ammo, good Mobility for an Assault-Mech, extra Stuff like BAP, AMS and a single JJ to get over obstacles. The Heatproduction is fair, Groupfire the LLas for long-mid range, LBX to crit weakpoints or fire on at high heatlevel, and the best of it: Quad-Streaks to finish off cocky Lights or to add nonstop Screenshakes in Brawls. Alternate "AC.Upgrade" Version: Blagg
I changed the LLs to MPLs, giving the build a more close quarters focus. This allows you to mount the biggest engine, an additional JJ and 3 more DHSs. If you want, you could change some of those DHSs to ammo, but I think it has enough.