E2M5: Atmospheric Processor (Aliens TC)

E2M5: Atmospheric Processor is the fifth map of Aliens TC. It was designed by Justin Fisher, and contains a secret exit to E2M9: Alien Host Ship.

The map's subtitle on the intermission screen is Retreat to landing pads. In automap mode, the title is given as E2M5: Operations.

Other points of interest
The secret exit is located to the west of the normal exit, and is accessed from the central building via a yellow door (there is a yellow key inside the building).

Secrets
Four sectors are marked as secret: (sector 233), (sector 293), (sector 301), and (sector 316). However, none of these have any sidedefs, so do not actually appear in the level, thus the maximum obtainable secret percentage is 0%.

Speedrunning
As the secrets in this map can not be activated without cheating (see secrets), a NM100S run for this map is redundant. Other categories may ignore the secret requirement in this case.

Current records
The records for the map at the Doom Speed Demo Archive are:

The data was last verified in its entirety on December 12, 2021.

Player spawns
This level contains thirty-one spawn points:
 * 1) facing south. (thing 61)
 * 2) facing south. (thing 62)
 * 3) facing north-west. (thing 63)
 * 4) facing west. (thing 64)
 * 5) facing south-east. (thing 65)
 * 6) facing north. (thing 66)
 * 7) facing east. (thing 67)
 * 8) facing east. (thing 68)
 * 9) facing north. (thing 228)
 * 10) facing west. (thing 438)
 * 11) facing north. (thing 444)
 * 12) facing west. (thing 445)
 * 13) facing west. (thing 446)
 * 14) facing south. (thing 447)
 * 15) facing south. (thing 448)
 * 16) facing south-east. (thing 449)
 * 17) facing south. (thing 450)
 * 18) facing south-west. (thing 451)
 * 19) facing north. (thing 452)
 * 20) facing north. (thing 453)
 * 21) facing west. (thing 454)
 * 22) facing north. (thing 455)
 * 23) facing east. (thing 456)
 * 24) facing south. (thing 457)
 * 25) facing west. (thing 458)
 * 26) facing south. (thing 459)
 * 27) facing north-east. (thing 461)
 * 28) facing north. (thing 462)
 * 29) facing north. (thing 463)
 * 30) facing south. (thing 464)
 * 31) facing east. (thing 465)

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

Inspiration and development
During development, this level became so large that it was split in two, the other part being E3M1: Bonus Level.