MAP33: Betray (Xbox Doom II)

MAP33: Betray is a secret map exclusive to the Xbox version of Doom II, included with the Xbox Collector's Editions of Doom 3 and Doom 3: Resurrection of Evil. It can be accessed from MAP02: Underhalls, and contains SS Nazis for no apparent reason. It uses the music track "d_read_m," which is otherwise used as the game's text screen soundtrack.

Completing this level takes the player to MAP03: The Gantlet.

It was originally a 1995 level designed by Michael Bukowski, a programmer for the Doom 3 port with Vicarious Visions. A bugfixed version, based on the Xbox version, can be downloaded at ClassicDoom.com alongside the Xbox version; in both cases, the level is located on MAP01. The Xbox version is a tweaked-up version of the original 1995 level.

The Xbox 360 port of Doom II and the Doom 3: BFG Edition version also contain this level; in the latter, all SS Nazis, with the exception of one, were removed. However, it is inaccessible in both versions because the exit switch leading to the level in MAP02 is inoperable (in the Xbox 360 version, it does nothing; in the BFG Edition version, the switch causes MAP02 to be restarted).

In the Doom II 2019 re-release for the Doom Classic Unity port, the map is omitted entirely; it is not accessible in an editor or to be found in the IWAD, as the IWAD itself is based off the v1.9 version instead.

Secrets

 * 1) When you start the level, enter the room directly to the north, and go through the teleporter.  After this, use the teleporter to the east, and flip the switch you find in the next room.  A compartment will open nearby containing a medikit and a switch. (sector 11)
 * 2) Flip the switch in secret #1.  When you access the red keycard, you will find that a closet has opened behind the keycard to reveal a rocket launcher and a backpack. (sector 26)
 * 3) In the eastern section of the level, a portion of the stone wall to the south is not covered in grime.  Open it to find two armor bonuses, a rocket, a box of rockets, a box of bullets, a box of shells, a blur artifact, a light amplification visor, a megasphere, and a BFG9000. (sector 76)

Bugs
On the intermission screen, the par time for this level is initially displayed as :00, but quickly switches to SUCKS. This normally only appears with the Time readout when the time taken to finish a level exceeds one hour.

In the Xbox version of the level, the teleporter in front of the yellow keycard door does not work. This is because while all of its linedefs are correctly marked as type 97 (teleports,) they are not tagged to any sector. Consequently, if you arrive here without the yellow keycard, it will become impossible to finish the level. In the PC version of this level, these linedefs are tagged, allowing you to escape from the room if you arrive without the keycard; you will be taken to the eastern section of the map.

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

The (absence of) data was last verified in its entirety on December 6, 2021.

Player spawns
This level contains eight spawn points:
 * 1) facing north-west. (thing 158)
 * 2) facing south. (thing 159)
 * 3) facing north-east. (thing 160)
 * 4) facing east. (thing 161)
 * 5) facing east. (thing 162)
 * 6) facing east. (thing 163)
 * 7) facing east. (thing 164)
 * 8) facing west. (thing 165)

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

Technical information

 * The Eternity Engine allows access to this map via the secret exit switch in MAP02 when playing with the Xbox 360 diskfile or the BFG Edition IWAD.
 * PrBoom+, in version 2.5.1.4 and onwards, also implements proper level progression for this map when playing with the BFG Edition IWAD, as well as a workaround to replace the remaining Nazi SS with a zombieman.
 * Crispy Doom offers native support for this map when playing with the Xbox IWAD, as well as with the BFG Edition IWAD.

Trivia

 * The Doom 2 the Way id Did project contains a level which is a parody of this map, Hexsoil.