CHECK THIS OUT

[colonel tomb]

http://www.panterenere.it/LAB/labirinth.html

Imagine a maze of 100,000 ft. high walls. One mission might be you have to fight past roving CAPS to find a nuke reactor within the maze, then find your way back out with limited time-fuel-weapons.

[colonel tomb]

The final approaches to the reactor might have obstacle structures, fighters, AAA, and SAMS(like the Death Star).