Search the following locations to find the corresponding hidden Black Box to unlock new Halo History entries which are needed to get the 100% achievement. Black Boxes can also be unlocked by winning different Skirmish matches with each leader.
Black Box 01 - Alpha Base:
Under the last bridge before entering Alpha Base.
Black Box 02 - Relic:
Approach top left of the map, behind a Covenant shield.
Black Box 03 -Relic Interior:
On the small ramp on the left side right at the start, before going inside the Relic.
Black Box 04 - Arcadia City:
Just north of the starting point, right next to the skyscraper where you can save Adam.
Black Box 05 - Arcadia Outskirts:
Go down the first ramp as you are fleeing from the Covenant, it's behind a downed Pelican.
Black Box 06 - Dome of Light:
Far left of the map, to the left of where you transport the third Rhino tank.
Black Box 07 - Scarab:
Far right side of the map, in a small alcove with supply crates.
Black Box 08 - Ander' Signal:
Near the big brute fire line at the start, on a ridge to the right.
Black Box 09 - The Flood:
Straight out from the base ramp on the other side of the map.
Black Box 10 - Shield World:
Alongside Bravo platoon, which is the middle platoon you pick up.
Black Box 11 - Cleansing:
Left rear of the ship, on wings that slant down (requires a flying unit).
Black Box 12 - Repairs:
Left edge of Spirit of Fire, not far from the Power Core building, on the left side
Black Box 13 - Beachhead:
On a ledge near the second set of teleporters, near the Covenant base.
Black Box 14 - Reactor:
Up and to the left at the peak of first ramp. It is on the edge of the ramp.
Black Box 15 - Escape:
Directly opposite the starting point on the north edge of the map, between the Flood and the Covenant base.
Added by: Sanzano Mar 17th 2009, ID#4165