The Outpost of Malice blocks the only viable entrance to a vast island labyrinth in the middle of a lake of blood. Marine spys have noted heavy enemy resitance inside the structure which has prompted curiosity from the military high ups as to what lies in the labyrinth that requires so much protection. Contact from the spys was soon lost after confirmation of enemy resistance, and they are presumed captured and most likely dead.
Your mission is to penetrate the outpost and gain access to the island labyrinth. If you happen to find any spys who are still alive please attempt to rescue them as well. One spy reported that the main entrance to the outpost does not require any key, but it is heavily guarded.
ID Software and the creators of ZDoom/Boom.
New from scratch
40 hours maybe
In PRBoom LineDef 1137 doesn't lower the tagged sector properly if the "Use Doom's Linedef Trigger Model" Compatibility flag is enabled. Disabling allows for proper operation. I don't know what the problem exactly is, but other instances seem to work fine. If anyone know the issue please email me. This also means the level is likely broken on other source ports that directly follow Doom's original trigger model as well.