Placeholder until Smurfy is updated. I think this is as close as you can get to the WHM-6D (which has a really effective mid-range build with 3xLPL 4xERML). Convergence is not nearly as bad as you would expect if you stack all of the large pulse lasers on the left side (arm and torso) and put the medium lasers in the head and other arms. The hardpoints are strictly worse than the 6D and the alpha is lower, but with the same number of heatsinks, it is more heat efficient. Will it be viable in a typical faction play match like its 6D cousin is? Probably not, but time will tell.
I'm running the same weapons but with a LPL and ERML in the RA and LA then a LPL in the LT and the last ERML in the head. https://mech.nav-alpha.com/#bd4c48b9_WHM-4LL
That looks all right, but then you have to expose the whole mech around allies or corners to peek and shoot. I picked the asymmetric build so that I can favor a stronger side and more effectively peek.