Fireteam Crimson is in the middle of an unspecified operation at "Apex" when they suddenly receive an emergency call from the UNSC Infinity. Commander Palmer orders all fireteams to return to the Infinity which has been boarded. Miller orders Crimson to abort their operation immediately. However, there are still Covenant and Promethean forces in the area, preventing a quick evac. Murphy tips the balance in the Spartans' favor by dropping off a Mantis. With the Mantis' firepower, combined with covering fire from Murphy's Phantom and the Spartans' skills, Crimson clears the area and destroys an enemy Phantom threatening Murphy. Murphy then picks up Crimson in his Phantom and sets a course for the Infinity.
All dialogue is spoken through the COM.
Crimson is busy battling Prometheans inside of a cave. A Forerunner portal is present.
Crimson clears out the Prometheans and shuts the portal down.
Crimson reaches a shield barrier.
Crimson takes out the generators, disabling the shields. They exit the caverns. Covenant and Promethean forces waiting outside engage them.
Crimson battles more Covenant, including a Wraith.
Enemy Phantom approaches.
Enemy Phantom fires at Murphy’s Phantom.
Supplies are dropped from orbit.
Murphy continues to battle the enemy Phantom.
Enemy Phantom is finally destroyed.
More Covenant and Prometheans appear.
More supplies are dropped off.
Once the LZ is cleared:
Murphy’s Phantom lands.
Crimson boards the Phantom.
The Phantom takes off.