Run into the cabinets to gain access to them. When presented with 'MRU Command' type ROA. You will be asked for a code. The four codes are Red 7, Blue 1, White 6, White 50.

Filing cabinets are in rooms 31, 33, 35 and 37. Room 28 is a safe room. The Telemetry Guidance System shows you your current location.

Beware of the guard as he can see you if you cross the top of the corridor he is in. He cannot see into rooms and the rooms around the sides of the building are safe.