Clint,
Congrats. To answer your questions I believe the questions are the same.
It is an automated interview so practice infront of a mirror sitting down with a timer and answering the questions first. I would practice at least two to three times. Ensure your wifi is good, turn off all phones in the house, send everyone including your pets away and make sure that the background behind you is good/professional. No Budweiser signs etc. Someone actually told me if I had a picture of an aircraft I flew to hang it on the wall and sit infront of it. I thought it was a good idea so I did just that.
Definitely wear suit and tie for the interview, pants optional. Ha Just don't stand up while interviewing. It will go quick so have your thoughts organized and be ready to go. I actually posted note cards next to the compute in case I froze or got stumped. It is fairly easy though.
I don't know if my internal rec's ever helped me. I am military as well with similar qual's but AA never once mentioned my LOR's.
Just be yourself but definitely practice before you do it.
Congrats again and cheers.