Ok, for this you'll need a map with like a building or something that looks artificial (that you can walk around in). I know a good one is Inf_industrialv2. Then baisicly destroy the map, and leave the pieces lying around. You can make mazes like this if you block the entrances. I made one, and I think its beter than what I started with.

What are you talkin about? post it maybe sounds cool but i can't really follow.

he said he wants to have a maze, or that having a maze would mske a good map...
i like it :D

He means...
1. Make a map
2. Mix all the polygons around, by knocking walls down and stuff
3. Map done

That seems pretty good, although I basically do that alrady