xhonzi said:

Have the AT-AT fall, but have the side door damaged and slightly open after the crash. Have the fly-by speeders bomb the opening instead of firing lasers at it.

Kaboom.

Problem solved?

Incom T-47 speeders are not equiped with bombs. Thus I suggested the Rebel ground troops running towards the crash with a portable concussion missle launcher with a combined attacked from the snowspeeders.

Anyway, there are 3 exits on the side of the body portion of the AT-AT (2 of them emergency hatches)... this would also assume that the AT-AT knelled down correctly and deployed it's boarding ramp normally... However, in this case, it's a crash, via tripping which isn't proper procedure for standard knelling down debarking. Unless you want one of those emergency inflatable airplane slides from the emergency exit and even with elapse time it'd be awkward to pull off. As cool as it would be this borders on adding things for the sake of adding things because it looks cool rather than driving anything further for the story or improving an existing shot all too much. However the angle of the AT-AT in Angel's render is an improvement if those elements can be swapped out because you can see the neck being shot at better.