"MAETERLINCK" & "WU HUAHAI" BOSS FIGHT ARMORED CORE 6 FIRES OF RUBICON (PS5). Maeterlinck and Wu Huahai are a duo / double boss fight in Armored Core 6 right before you reach the "CEL 240" Boss Fight. They aren't too bad with dual miniguns and stagger RPG. V.VI Maeterlinck and G3 Wu Huahai pale in comparison to the Chapter 5 end CEL 24O boss so get used to reloading this dual boss fight if you need to use the shop. FromSofware has created another masterpiece with Armored Core VI: Fires of Rubicon.