https://mwo.nav-alpha.com/mechlab?b=c7ece079_SR-4 Very solid build. Quirks HEAT-5% WEAPON VELOCITY+15% BALLISTIC HEAT-7.5% BASE ARMOR (CT)+20 BASE ARMOR (RT)+20 BASE ARMOR (LT)+20 BASE ARMOR (RA)+20 BASE ARMOR (LA)+20 BASE ARMOR (RL)+15 BASE ARMOR (LL)+15 You can recreate on a KDK-3 without the quirks, but with better side torsos and ballistic hardpoints. KDK-3 has a higher engine cap if you want to drop down to 2xPPPCs.
Room for one more annoying gun that keeps flashing their cockpit. https://mwo.nav-alpha.com/mechlab?b=1abca168_SR-4 If you are seeing more lights that LBXs might be better. Otherwise, I tend to prefer the ACs for slow targets. https://mwo.nav-alpha.com/mechlab?b=00ec0f98_SR-4 Spoiler
https://mwo.nav-alpha.com/mechlab?b=552b8e83_SR-4 This works well. I found I need the extra heatsink. I do run out of ammo on longer matches. Ammo Weapon Ammo Shots Dmg C-ER PPC (2) C-AC/10 (4) 184 23 920 Quirks HEAT-5% WEAPON VELOCITY+15% BALLISTIC HEAT-7.5% BASE ARMOR (CT)+20 BASE ARMOR (RT)+20 BASE ARMOR (LT)+20 BASE ARMOR (RA)+20 BASE ARMOR (LA)+20 BASE ARMOR (RL)+15 BASE ARMOR (LL)+15 Watch the arms. Easy to catch teammates that cut in before you see them.