Find all the Mold samples, kill the source, and eliminate any outbreaks for Underhill
Control - Old Growth: finding the Mold samples and defeating Mold
Control: All Optional Boss Monsters
Control - Old Growth: Mold-1 Boss Fight (PS4)
Control: Mold-1 - boss, how to defeat?
Control - Old Growth: finding the Mold samples and defeating Mold
Side Quest: Old Growth - Control Walkthrough - Neoseeker
Play it Yourself
Easy way to kill Mold-1 boss. : r/controlgame
Control: Old Growth - walkthrough