a unit i feel is missing in this game, that id like to see in the expantion or modded in, is a stormtrooper with a deplyable laser cannon, like in esb just before the falcon leaves echo base. because imps only have 2 type of infintry while the rebs have 3, (not including major and minor heros)
also cool ideas are:
boats and subs
x-wings and tie fighters that act like snowspeeder
do rebs have a anti-air vihicle?