@ Jacen: Excellent point (and "Easy-Bake Stormtroopers" is hilarious)

Like Muddy, I agree that it is kind of pointless for the Rebel troops to be there. I guess they would rather make an ineffective defensive effort than no effort at all. And to .Mac.'s point, it would be damn cool to see dozens of snowtroopers rappelling down from AT-AT's once the generator's been destroyed. Any chance Ralph McQuarrie did concept art for that?

After all, the huge bodies of those AT-AT's wouldn't just be used for carrying refreshments. "We're not hosting an intergalactic kegger down here."