- This level occupies the map slot MAP21. For other maps which occupy this slot, see Category:MAP21.
MAP21: One Flew Over The Caco's Nest (called One Flew Over the Cacos Nest [sic] on the intermission screen) is the twenty-first map of Alien Vendetta. It was designed by Pablo Dictter and uses the music track "Grove" from Hexen. It was one of the few maps to remain unchanged from the first release to the second.
In the first part, if you stand under the descending bars, they will not go down anymore.
- Near a red inverted cross in the wall near the beginning of the level, there is a flashing wall covered by green vines. Open it to get a plasma rifle.
- Directly across from the exit teleporter is a skull recessed in the wooden wall. Press the use key on it to open a nearby secret area with a soul sphere.
Routes and tricks
The Compet-N records for the map are:
|Monsters||ITYTD and HNTR||HMP||UV and NM|
|Barons of Hell|
|Icon of Sin|
|Powerups||ITYTD and HNTR||HMP||UV and NM|
|Weapons||ITYTD and HNTR||HMP||UV and NM|
|Ammunition||ITYTD and HNTR||HMP||UV and NM|
|Keys||ITYTD and HNTR||HMP||UV and NM|