Well, like i said, im just going off of what i read, and i seem to remember somewhere in a game i saw it kneel, (i don't remember though, sadly.) and i just thought it would be cool to have it so you could use the side door as a ramp to get out when it kneels down.

Curses, foiled again!

You know, when thinking about it, I would like a static AT-AT in a kneeling position. Could be nice if the devs decide to make that Inside Echo Base map they've been talking about - the Imperials could spawn in those statics, amidst burning Rebel defenses, bodies, and AT-ST statics. But making you have to kneel to deploy troops? Interesting concept, but no thanks.

All transports should be spawn points, if you ask me. Except, of course, from little ones like speeder bikes and landspeeders.

In real Life they would probably just fast-rope out of it like they would out of the new v-22 Osprey or MH-60 Blackhawk helicopter.   

However if the animation of roping down would take to long, I'd be happy to just jump out the hatch in the floor and appear on the ground.

However its done this would be incredibly cool.