This is my current Trenchbucket build. I love it. It's fast, hits hard, super maneuverable. It will get you into trouble though as it tends to hit well above its weight class.
You can actually build the mech in Smurfy, and then use the "Share" button to generate a link to it. Paste that link here in [ smurfy] [ /smurfy] tags and it will post the description with a link we can play with. This build is decent, but I think the ASRM2 isn't worth it. The ASRM6s are 4 tons for 6 missiles each, this is 2 tons for 2. Take that off and you can probably easily fit an XL 300.
I think Fuzzy did this before we had the Smurfy system fully implemented. Fuzzy, can you repost this with the right build format please? EDIT: Nevermind, I did it for you.
I really like this brawler build as well. good speed, great missile accuracy, and great cooling. easy 5-5 stars.