Use it like a giant version of the zombie crab. I don't know if the side torso will actually shield the center decently, but anyway you have +22 armor on CT, so the actual 78 in the build I provided count as 100. Don't worry about the ghost heat: 2xMRM40 don't generate so much ghost heat as lasers do, so keep alpha striking until you start getting hot, then chainfire if needed. If you really don't mind about being a zombie with only 2xML, here is the LE version.