Open the console, type map, followed by a level code.

Code	Effect
BORG1	Level 01 - The Rescue
BORG2	Level 02 - Incursion
BORG3	Level 23 - Proving Ground
BORG4	Level 24 - Information
BORG5	Level 25 - Covenant
BORG6	Level 26 - Infestation
DN1	Level 30 - The Breach
DN2	Level 31 - Command
DN3	Level 32 - Primary Encounter
DN4	Level 33 - The Skirmish
DN5	Level 34 - Defensive Measures
DN6	Level 35 - Attunement
DN8	Level 36 - Array
FORGE1	Level 39 - External Stimuli
FORGE2	Level 40 - Matrix
FORGE3	Level 41 - Onslaught
FORGE4	Level 42 - Visual Magnitude
FORGE5	Level 43 - Dissolution
FORGEBOSS	Level 44 - Command Decision
HOLODECK	Level 03 - Tactical Decision
SCAV1	Level 15 - The Visit
SCAV2	Level 16 - Dangerous Ground
SCAV3B	Level 18 - Conflicting Views Part 2
SCAV3	Level 17 - Conflicting Views
SCAV4	Level 19 - Disorder
SCAV5	Level 20 - Infiltration
SCAVBOSS	Level 21 - The Hunter
STASIS1	Level 09 - Data Retrieval
STASIS2	Level 10 - Deep Echoes
STASIS3	Level 11 - Encounters
VOY13	Level 27 - R & R
VOY14	Level 28 - Visual Confirmation
VOY15	Level 29 - Offense
VOY16	Level 37 - Invasion
VOY17	Level 38 - Decisions
VOY1	Level 04 - Condition
VOY20	Level 45 - Epilogue
VOY2	Level 05 - Unavoidable Delays
VOY3	Level 06 - Hazard Duty
VOY4	Level 07 - Defense
VOY5	Level 08 - Hazard Ops
VOY6	Level 12 - Renewal
VOY7	Level 13 - Union
VOY8	Level 14 - Departure
VOY9	Level 22 - Fallout