I have the dual jewel version of Descent 3 (I got it for Christmas from a friend a few years ago because the old version I had wouldn't install anymore). On the dual jewel D3, level 10 of Descent 3 Retribution always crashed when entering the room with the "nodes" for uploading data. Now I'm using the version of Descent 3 that I downloaded from here (which is patched to 1.4 instead of 1.31 like the dual jewel). Now level 10 crashes outside, just before the Juggernaut or the heavily armed area. I used to use the level warp cheat to unlock all the levels after level 10 (there was a way to do that by exploiting a bug in 1.31), but in version 1.4 I can't even do that anymore.
The frustrating part is that all my favourite levels are after level 10.
I'm also too scared to try to beat Mercenary level 3. Any robot with Mass Driver terrifies me. (It was the same with the fusion bots in D1).
There aren't really enough other quality single player levels without terrifying bots that I haven't already played to death. Besides, I tend to prefer multi-level missions rather than standalone levels.
D3 Retribution level 5: What was the composer thinking with this level? The music clashes embarrasingly with the story of the mission.
To be honest, I think the coolness of the level 11 music would make up for that, if I could only get to that level. Grrrr...