Hellbound secrets pls?

[Xfing]

I've got 100% completion OCD and I'm in level 4 of Hellbound. All monsters dead, one secret remaining. Could someone help me? That final secret isn't indicated by the Computer Map collectible in the level so I'm just running around aimlessly. I don't want to use noclip.

[joe-ilya]

Xfing said:

I don't want to use noclip.

Use IDDT then.

[Genki]

Try to open the map with doombuilder, and look for it. All maps have sector effect "9" which is identified as "secret".

[Xfing]

joe-ilya said:

Use IDDT then.

That's literally like the first thing I use, haha. Not all secrets require finding areas of the map which haven't been uncovered yet, mind you. But yeah, anyway I've made it to level 6 already, been a blast.