If you get a Magma Recoiler by any chance, use it in place of IronBark.
Keep Zarkares on your mech while boosting Nightmare in the background. When Nightmare becomes stronger than your current torso, put it on your mech.
Upgrade your modules. Very important. Also why do you have no Energy Modules? Heat Torsos are not very good at Energy, so you really need some of those.
Remove the Frantic Flame, not a good item.
Also when you get a Magma Recoiler, replace both Frantic Flame and Frantic Brute with a Supreme Cannon and maybe a Savagery.