[tsofian]

The Emergency Exit doors do not have card readers and can only be opened from inside. To break through them will require violence, a LOT of violence.

The rest of the Prime Base external doors can be opened with Morrow Project ID cards, but there are some twists. A Prime Base card may open a door, but only if the card holder has been given "external access" in the system. This is done by Base Operations through base Security. It means the person will be outside the base and will need to get back in.

All Regional Command Teams have an "ALL ACCESS" (AA) card(s) that allow field team personnel to make access to a base. If the base is in the Command Teams Area of Operations (AOO) the AA card and a single MPID is needed. If the base is outside the AOO then the number of additional MPID cards required depends upon the size of the base. Caches require 2 cards and the AA, Area bases require 3 MPID, Regional bases 4 and Prime Base 5 MPID and the AA.

When Prime Base went down ALL Prime Base IDs were collected and ALL external access for them was withdrawn.