Search and Destroy
From Halopedia, the Halo wiki
While Fireteam Switchback goes to deal with the Covenant excavation, Crimson is assigned to take out the plasma supply depot. The Spartans arrive at the facility, deal with the guards, and destroy all three plasma stockpiles. However, they also discover stolen UNSC equipment at the base. What's more, Miller is detecting unusual readings from inside the central structure. Palmer orders Crimson to investigate the depot's central structure. After finding the access controls, Crimson opens the central structure's door. The Spartans deal with a group of Stealth Elites, then move into the structure to investigate. There, they discover a cache of stolen nuclear weapons. Worse, the warheads themselves have been removed. Just then, Crimson receives a distress call from Switchback, who are facing massive resistance at the dig site. Palmer orders Crimson to head for the dig site and help Switchback.
All dialogue is spoken through the COM.
The Pelican breaks off. The Phantom maintains its current course.
Crimson is deployed. Almost immediately they are engaged by Covenant troops.
Murphy’s Phantom provides cover fire for Crimson.
Crimson receives the waypoint to their first objective.
If Crimson destroys a stockpile that has not been marked yet:
Crimson attacks the first marked stockpile:
The plasma stockpile soon detonates in a series of massive explosions.
Crimson finds a stockpile of stolen UNSC weapons.
After Crimson clears the immediate area:
Crimson does so. Scan is initiated.
If player(s) move around during the scan:
Scan is completed:
Crimson fights their way to the override system, but find the entrance blocked.
If all the stockpiles have already been destroyed:
A Covenant Wraith appears.
Crimson fights their way to the second stockpile and destroys it.
If Crimson destroys the stockpiles out of order:
Crimson heads to the third and final stockpile. They destroy it.
Jackal Snipers appear.
Covenant Ghosts arrive.
Once most enemy forces are down:
Crimson activates a panel on the designated door, triggering a hidden gravity lift that takes them up to a control room.
Crimson kills the invisible Elite patrolling the control room.
Crimson finds the access controls to the central structure and activates them. Doors dissolve, exposing exits. The ground trembles.
Enemy Phantoms arrive and deploy more reinforcements, including Hunters.
Once all the Covenant attackers are defeated:
Crimson heads to the central structure, where they encounter a cadre of Stealth Elites guarding the entrance. Some of the Elites are armed with Particle Beam Rifles.
When about half of the Stealth Elites are down:
Remaining Stealth Elites are marked.
Once the entrance is clear:
Crimson heads inside the structure to investigate. They come across a collection of UNSC nuclear weapons.
Crimson suddenly receives an emergency transmission.
If the player has activated the RvB Easter egg.
Murphy’s Phantom comes in. Crimson gets on board.