MAP42: The Factory (PlayStation Doom)

MAP42: The Factory is the forty-second level of the PlayStation and Sega Saturn versions of Doom, and the twelfth level of the Doom II episode. It is based on the original MAP12: The Factory, with modifications made to adapt the map to the consoles' limitations. The author of the original map is Sandy Petersen.

Completing this level will take the player to MAP43: The Inmost Dens, as MAP13: Downtown is not present in the console games.

Secrets

 * 1) (sector 46)
 * 2) (sector 69)
 * 3) (sector 72)
 * 4) (sector 127)

Comparison of versions
A number of changes were made to this level compared to the PC version.

Room design

 * In the PC version of this level, there is a switch behind the teleporter in the south-western room in the main factory building which requires a blue key to enter. The switch raises the floor inside the building's central structure, allowing you to kill the imps inside without having to visit secret #2 and being attacked by them on all sides. This switch is not present in the console version; however, it is possible to activate the switch inside the structure by pressing on the east side of the structure's outer wall.
 * In the PC version of this level, it is not possible to go back through the yellow door after it shuts behind you in solo play, as the back side of the door requires a red key which is not present in the level. The console version of the level changes the door to require a yellow key on both sides, making it possible to backtrack.
 * The room with the exit teleporter uses different textures. The teleport pad is red instead of white, and the walls do not have exit signs on them.

Monster placement

 * The chaingunner guarding the yellow keycard is replaced with lost souls - two on I am a wimp/Not Too Rough skill level and three on Hurt Me Plenty/Ultra-Violence.
 * The chaingunners protecting the BFG 9000 in the north-west room of the main factory building are replaced with imps.

Music
The map uses the following music tracks:

Player spawns
This level contains six spawn points:
 * 1) facing south-west. (thing 166)
 * 2) facing north-west. (thing 167)
 * 3) facing north-east. (thing 168)
 * 4) facing south-east. (thing 169)
 * 5) facing south-east. (thing 170)
 * 6) facing north-west. (thing 171)

Things
This level contains the following numbers of things per skill level: