From Halopedia, the Halo wiki
The Citizen Alert was a series of propaganda messages released by the United Earth Government to reassure the civilian population during the Battle of Earth in 2552. In New Mombasa, two Citizen Alert messages were displayed on electric message boards.
One of the messages is from Earth Secretary of Defense Paul Huphy Russel, imploring the youth of New Mombasa to enlist in their local "freedom fighter brigade" to fight the Covenant. The other is a message from Earth Minister of Information David Dockmaster Dunn, urging civilians to "please do your part by reporting to the nearest evacuation zone."
- These signs display messages on both sides, despite the fact that one side faces a wall.
- The player can find these in Halo 2, level Metropolis, near the area where the player fights a trio of Zurdo-pattern Wraith (the Marine command post). You can find one by following the road which curves around in a detour to the left.
- These signs are similar to the four that are visible in the Halo 2 E3 demo, when the Master Chief operates the turret and after one of the Marines on the radio says "Hostiles right". It is unknown if the messages on the boards are the same as in the final game.
- Unlike most other signs on the level, these signs are destructible and will explode violently (the way they do in the demo). This explosion will launch a Ghost rather far if it is pressed up against it.
- In Halo 2 Anniversary (PC confirmed), the message from Paul Huphy Russel has a typo stating "Your ciry needs you!"
List of appearances
- Halo 2 (First appearance)
- Halo 2: Anniversary