I jumped out of one once and the most interesting part of that was we did the entire sortie with the ramp down and all the jumpers facing aft (with a blanket for comfort I might add). This meant I could see out of the back and was very surprised when we taxied out to see us reversing and basically doing a three point turn at the end of the runway
I didn't know about beta at the time, so it just seemed ... odd (and funny)