Co-op maps fitting these criteria

[Reisal]

I'm looking for some co-op Doom 2 mapsets that match the following criteria:

-12 maps or more, preferably 32
-No fancy monsters or weapons DECORATE/sprite replacement stuff
-No face HUD changes
-No ridiculously complex puzzles
-New textures/flats optional
-Levels should not take too long to complete (15-20 min tops)
-Enough monsters (150+ to keep myself and 2 others occupied)

[Andrea Rovenski]

Flashback to Hell is a good co-op mapset

[40oz]

UAC Ultra ._.

[scifista42]

Jenesis
Doom 2 Reloaded
Zones of Fear

[TimeOfDeath]

barbamaps

[lupinx-Kassman]

Coop Quickies basically fits that description to a T...well except that it is 11 maps, but hopefully that isn't a death sentence.

[Reisal]

It's not an absolute criterion, it's just strongly preferred.

[Reisal]

Thank you for your input guys.