Once ifrit finishes her cycle you can deploy mlynar and nightingale, and keep in mind the cleaners from middle. You wanna time mudrock skill to kill them properly. For silverash on the left use Angelina skill when the car gets in range. Back on the right, whenever mlynar is ready just drop his skill, use a Ng cage to bait fear. Mlynar can finish off first phase. On the right, silverash may die to the last wave of enemies, so keep sexas ready and also Angelina skill should be up in time. I really forgot to give him a seabon so you should top him up on the last wave. Btw if you mess up mudrock timing u can stall cleaner for a sec with gravel. When boss phase two arrives, activate everyone's skill on the right, drop ng cage, drop sexas as soon as possible and pray. My Saria is modless so she died after a couple hits but the boss was stunlocked by Texas. I see yours has module so idk if that will help, shouldn't matter either way since it wasn't very tight. The tight part was left side when my Silverash died