Girls Frontline 2 - Weekly Boss Fight 6 (Deichgraf)

Yeah so the first boss has a very small HP pool so you can use crappy underleveled T-dolls for it
Save your best damage dealers for boss 2, and Vepley. Vepley is core to the strategy and can't be replaced. Movement speed down II debuff is a MUST for the boss. Mosin Nagant can be replaced with Sharkry, considering the amount of times I apply overburn to the boss. Qiongjiu is really hard to replace, maybe with someone like Tololo. Ksenia can easily be replaced by either Suomi or Colphne.
By the way, you might wonder what happens if you don't do that minigame on the right area. By turn 3, if you don't finish the minigame, the boss will deal 9999 damage to all your T-dolls resulting in a instant loss. This minigame starts again on turn 4 and if you don't complete it again by turn 6, the instant game over will occur. The minigame starts again at turn 7, but you don't have to do that one.