The Great Escape is a pretty long scenario with a lot of creative and strategic elements. You start with a small force and find more forces in the form of gaia units. Priests and villagers are your most important pickups because once you have villagers, you can start collecting resources and building units. The priests allow you to heal your forces as well as coverting units over walls, of which there are a ton. My one complaint was that the walls were too close together - it made movement a real chore. After you carefully procede thru the maze of enemies (you only have one enemy at this point), you should have access to all the resources you need. However, one of your allies, who happens to have a large number of towers, is guarding the exit to the level. The only way to get thru is to make an enemy out of him. This must be timed well and your villagers and buildings must be out of range of the towers when you attack or all your hard work will be for nothing. If you've managed to get stone throwers, you can methodically knock down all the towers and win. It's a very creative and fun scenario that only bogs down a little bit at the end. Excellent job.