Shuttle bay door

The Shuttle bay door is a force field that allows or disallows Dropships to enter the Shuttle Bay of a Covenant ship, like the Truth and Reconciliation. It is likely that this keeps the shuttle bays air-tight.

In Halo CE It is possible to operate the shuttle bay doors. On the level Truth and Reconciliation the player is able to access the doors by heading to the Third floor Of the Shuttle bay And pressing X on the control panel. Or if you are using the PC version it would be your action key that you use to get in and out of vehicles with. You Do not need to do this to complete the level, but you must do something similar by heading to the Second floor of the Shuttle bay and release the Dropship That in the cutscene after that Jacob Keyes will be mentioned piloting it and using the Front section of it to ram into two incoming Hunters.