So I found an unopened AT-AT in a shop this past weekend for $150 and went ahead and bought it. I keep all of my Imperial Assault models on a shelf, and this guy looks amazing with all of them.
Have any of you guys tried to use one of these for a custom game? Any rules or general values that seem appropriate? I figure the easiest way would be for it to be "un-manned" and have each side of a skirmish race to get the access card, and then be the first team to have uncontested control of the base of the AT-AT, winning by "stealing" it.
EDIT - Here's a picture!


