My first build posted here, but I've got several hundred hours in the game and have been playing off and on since the open beta days, I noticed there was no Skoll build here because I recently got this mech and couldn't find a halfway decent looking build anywhere, so i sat down to make my own. This is a straight up close-in brawler build, pretty hot but mobile for a heavy mech, MASC can get you out of trouble or let you close in for a kill. You will definitely want heat management skills for this one. I also like to have an extra weapon group with the lasers on chain fire for when you need to manage heat but still put out a little damage.
Similar to my setup, I just downsized the engine and equipped a SRM6+A. Cooling & Ammo are sufficient for me: