【Arknights】CCB#2 Rotating Map 4 -Research Base | 200 Score | Low Rarity | Mission | Underdawn Director Nian 26 Clears CC#2 Battleplan Underdawn Research Base Quarantine Zone 200 Submitted by admin 3 months ago Squad Use squad Hoshiguma Matterhorn Gavial Cardigan Gummy Purestream