Update on fencing, just so everybody is on the same page. The spiked fence here, I would say the poles are set into the concrete, making the fencing even stronger. In looking at the fence, I think the Asylum group could possibly defend the perimeter quite nicely atop the platforms with something like axes, bats, maces..anything that gave them a decent reach. Geeks couldn't reach them, but the group could reach the geeks and knock 'em out one by one. Of course, you could always spear through the fence too. 

The main gate is decorative but made out of the same material and is flanked by a guard shack and visitor check-in building 
[img=http://www.ameristarfence.com/uploads/upload_940_brevard_by_amerifence_29_4f04a280deaa1.JPG]
[img=http://www.americanmodulartechnologies.com/Guard%20shack%20ticket%20booth.jpg]
[img=http://thumb10.shutterstock.com/display_pic_with_logo/197275/197275,1250524233,3/stock-vector-wrought-iron-gate-and-fence-35413504.jpg[/img]

The chain link fence about ten feet or more behind the main exterior fence is just a typical perimeter fence. 
[img=http://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/2008-07-30_Fence_along_Commerce_Blvd_at_RDU.jpg/800px-2008-07-30_Fence_along_Commerce_Blvd_at_RDU.jpg]