Some clearing up to do...

Just a quick note: the Imperial Walkers (AT-ATs) are pronounced ay-tee-ay-tee (you say every letter). It's an abbreviation, you don't pronounce it as if it were "Atat"(which is really hard to say! Seriously, try it!)
If you still won't accept the terrible truth, how do you pronounce AT-RT? Atrt?
Just something that I was desperately longing to clear up.
But to make your life easier, and to talk Star Wars without sparking debates that will go on all night, you can just say Imperial Walkers. They actually never say "AT-AT' in the movies.