It's not as interesting as you think but I don't remember what it's called. It's a contraption that shoots in 3 different directions
*shoots down DonJoe with a lasor*
If I'm not mistaken, you're talking about the Mangonel Trap, yes?
Dungeon Keeper 2 Patch: With More Balance and Pie [Hiatus]
Forever Hiatus. Probably. Latest Version: 3.5 w/Levels 1-11 Revised.
The Awakening: GM Powers Activate!
Tesonu is napping!
I'm pretty sure it's the closest thing to the sentry being accepted (if so). But yes, you're right