Lieutenant Gray is essentially a DPS boss, with minimal mechanics. You need to defeat him to gain entry to the facility.
- Lt Gray has 3 bodyguards who use train doors as shields. Shield guys mitigate damage to Lieutenant Gray.
- Lt Gray Overheal: Gray has the ability to overheal himself and heal the 3 bodyguards. Maximum overheal will cause the bodyguards to drop shields and be aggressive towards agents.
This encounter is normally the quickest – Once the boss has been activated 3 bodyguards with a shield rush to protect him. They can be killed with conventional DPS, mortar turret, or sweet dreams. The shield guys near the end of the encounter become elites. When Gray starts overhealing, it can be interrupted by shooting his backpack. When his bodyguards break formation or die, Gray takes a lot more damage.