Arknights 10-17 AE

Ok, What in the artillery and edo tensei is this in chapter 10? At the beginning, I tried to use Mountain/Blaze at left side but all of them got ran over even with Shamare and Ptilopsis help and at the right side I tried to use Mudrock and Ifrit/W/Rosmontis on the Boss (with the artillery) but during the Boss phase 2, Mudrock had too little HP to survive the nuke with no shield regenerate in time. Instead of focusing the Boss completely, I decided to put Mudrock at the left side (with the nuke) except the enemies are really just too much and she got ran over specifically those casters ugh... so I'm thinking of something like AoE/Stun to assist Mudrock. I thought about W at first but decided to use Rosmontis for continuance stun/damage, but Mudrock still barely survive so I needed another who can do damage or maybe debuff or both like Ifrit. There's a problem though but we'll get to that later. At the right side. If the Boss stacked his ASPD, he won't move a single pixel and just attack. First I tried to do like bottom right Ash, Blaze, Saria, and bunch of healers behind but it didn't work, Saria down almost immediately even with S1M3, and Ash... most of the bullets went miss. Yeah no, not going to near him. After that, I thought about using debuff maybe Saria S3, and for the damage obviously Eyja S3, and Surtr S3 but the timing will be completely off and there's no time for phase 2, not just that, but the dodges. Now back to Ifrit and Rosmontis in mid. During phase 2, OPs will get randomly attacked so I really need a medic for Ifrit and Rosmontis but normal medic can't reach that far except her, Kal'tsit... S3? True DMG?! Wait, she survived the nuke? There it is. Mon3tr to bait the nuke while also do damage. Although I needed some OPs to distract the Boss so he won't attack Mon3tr, so she can use all the second of S3. Also, for backup I used Flametail to stall until Mon3str redeploy to bait the nuke again. ImoKurai4458