I'm having some very good matches in this 'Mech, so I thought about sharing it. Should probably swap the ERPPC for a regular one because of how hot it runs (you can't fire it with the SRMs in close range more than twice without overheating), or maybe getting an ERLLas and a couple heatsinks. I don't really want a Large Pulse Laser or mediums because I like having a little long range capability for those matches on Alpine Peaks where you just can't seem to do anything and don't get any assists (whics is sad). I may replace one or two ammo tons with heat sinks, I have not yet ran out in any match, despite not dying that often.
I use an ER-LLas instead of an ER-PPC. It may not do pinpoint damage as a standart PPC but it has a better rate of fire, greater range, does comparable damage, generates less heat, is smaller, weighs less and can be used in close combat. I also mounted it in the left torso so that I can use both of my arms as shields. The flamer in the right arm is really helpful against clan mechs. http://mwo.smurfy-net.de/mechlab#i=128&l=a1dcfe8bc2ccb8984e1e55f727917832112dd9d3 I did run out of ammo a couple of times but I do run low on a regular basis. I thought about removing one ton of ammo to install an XL295 (95,6 kph) but I don't know if it is worth it.
For the longest time I was using an almost identical build to the ERPPC + 4xSRM6 (I dropped one HS for a ML). I loved it and it was my favorite mech by far. On a whim I changed the ERPPC out for an ERLL, more armor and an additional HS and I really think this build is perfect. My build is identical to yours, just trading the flamer for a medium laser, and I prefer the ERLL in the arm for better sniping angles. I also prefer to store the ammo in the legs instead of in the side torso -- you can survive one leg being blown off, but you can't survive an ammo explosion in the side torso with an XL engine. Good build!
I seem to have found the perfect balance for mine now. I removed half a ton of ammo and a jumpjet to install an XL295. That little bit of speed was exactly what I was missing in this build and four jumpjets still work well. I also moved some ammo to the legs. http://mwo.smurfy-net.de/mechlab#i=128&l=bada4436bb6ed0fa01815ca1097f7d195ddd1cbb
5/5, Bumping up the nice builds. My version: You have shield arms now. Smaller shield arms and less JJ if you want superspeed. Yes, I would prefer a single ERLL instead of ERPPC, but that is another build (my build so I cannot vote for it).