I needed an alternate location for the interlude in Thunderspire where the tieflings "ambush" the player characters with a Bronze Warder. I didn't like that there were no other exits, and I couldn't imagine that the PC's wouldn't see the Bronze Warder behind the boulder. So I put statues (figures) around the outside of the room, but one animated when the players came in. The tieflings were up on the balcony. The railing provided cover. The rubble on the right was climbable. It went pretty well.

Click image for larger version. 

Name:	Tiefling Ambush..jpg 
Views:	661 
Size:	682.0 KB 
ID:	22812

Map was done with GIMP per torstan's excellent tutorial. Floor is a texture, balcony floor is just difference clouds. Rubble, columns, boulders and stairs are all from CSUAC.

.TM7