Quick answer
Find three skulls and one terminal in 'Boarding Action' by following precise pathing: first skull on a bridge after turning around post-Elite fight; second on an upper balcony near a duel room; third in the back corner of a shielded room; terminal at the top of a gravity lift after turning right instead of proceeding forward.
Guide briefing
Halo Campaign Evolved: Boarding Action Skulls and Terminal Guide
Find three skulls and one terminal in 'Boarding Action' by following precise pathing: first skull on a bridge after turning around post-Elite fight; second on an upper balcony near a duel room; third in the back corner of a shielded room; terminal at the top of a gravity lift after turning right instead of proceeding forward.
Applies to
- — Halo Campaign Evolved
- — Boarding Action mission
- — Skull collection
- — Terminal collection

Target
First Skull
- Checkpoint
- After eliminating two Elites
- Landmark
- Ring-shaped platform
Do this
- 1Turn around after eliminating the two Elites.
- 2Jump down from the ring-shaped platform and proceed halfway around to the other bridge.
Confirmation
First Skull is available as described. The first skull is located on top of the bridge after navigating the ring-shaped platform.

Target
Second Skull
- Checkpoint
- After acquiring the plasma sword and entering the duel room
- Landmark
- Upper balcony near the duel room
Do this
- 1Follow the right-side path up the room with two people dueling with energy swords.
- 2Take the door on the left side after ascending, then take a right to reach the balcony above the area.
Confirmation
Second Skull is available as described. The second skull is located on the balcony just above the area where the three Elites with plasma swords are present.

Target
Third Skull
- Checkpoint
- After entering the shielded room with periodic enemy spawns
- Landmark
- Back corner of the shielded room
Do this
- 1Enter the room with multiple shields and a periodically opening door.
- 2Move to the back of the room to locate the third skull.
Confirmation
Third Skull is available as described. The third skull is positioned in the rear of the room, near the wall opposite the door that spawns enemies.

Target
Terminal
- Checkpoint
- After using the gravity lift in the shielded room
- Landmark
- Top of the gravity lift shaft
Do this
- 1Use the gravity lift in the shielded room after clearing all enemies.
- 2Turn around at the top of the lift instead of proceeding toward the quest marker to find the terminal door.
Confirmation
Terminal is available as described. The terminal is located immediately after turning around at the top of the gravity lift, requiring no additional combat.