Complete walkthrough for Act 2: Celerium in Call of Duty: Black Ops II. Follow our guide to navigate the mission, defeat enemies, and find all collectibles.
Walkthrough
- 1Follow Harper along the cliff face, obeying on-screen prompts. After reaching the ledge, activate your wingsuit and jump off, flying towards the objective marker while avoiding obstacles. Deploy your parachute when prompted.
- 2Once on the ground, follow Harper. Be aware of invisible enemies in the immediate area. Take cover and eliminate visible enemies, including those in the elevator and snipers on the hill.
- 3Proceed up the stairs and through the grass, eliminating enemies until you reach a helipad with many invisible enemies. Stay in cover and use the drone's Gatling gun to destroy vehicles and troops.
- 4After the drone is disabled, return to Mason mode. Find the open doorway to acquire enemy intelligence (1/3).
- 5Cross the open area towards the objective marker. Deal with three turrets using gunfire or EMP grenades. Follow your crew through the ruins.
- 6Take cover behind blue crates and eliminate enemies in the direction of the objective marker. Continue upstairs and clear the area before approaching the temple doors.
- 7Follow the ramp down after Harper blows the door. Enter the metal doors and loot the 'access' box for optical camouflage.
- 8Confront security bots and guards streaming down the stairs. Clear the room and find enemy intelligence (2/3) on a desk in the room to the left of your entry.
- 9Proceed up the stairs and head left. Work your way across the catwalks in the large, open room, eliminating enemies.
- 10Climb down the stairs and re-join your teammates. Eliminate the four enemies on the approaching elevator, then ride it down.
- 11Destroy the security bot by shooting the metallic tanks behind and to its left. Eliminate any investigating enemies.
- 12Enter the door on the left and eliminate the enemies. Destroy the sentry turret on the roof in the hallway beyond when it's not firing.
- 13Enter the large room and interact with the 'access' locker to acquire a security bot. Open the crate in front of the nearby door.
- 14Defend yourself from an enemy assault as smoke fills the previous room. Enemies will drop from the ceiling, sentry turrets will appear, and more enemies will enter from the top of the stairs.
- 15Eliminate all enemies, utilizing the sentry bot's assistance. Interact with the console to the left of the vault door.
- 16Kill the enemies that appear and return to the previous room. Climb the stairs where the enemies came from. Find enemy intelligence (3/3) on a desk in the office at the top.
- 17Continue up the stairs on the left, fighting through lab areas until you reach the hallway at the far end. Exit into the next room to complete the mission.
Tips
- Invisible enemies are prevalent in several areas; use cover and the drone's heat scope effectively.
- EMP grenades are useful for disabling turrets.
- The security bot can assist in combat.
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