Question about the Betty; Are you going to wait until she is out before you make a sound file for her, or do you have a sound file for her already?
Awesome sounds by the way, I love how the Panzer's gun sounds. When I took a Panzer out after putting in the sound pack, yeah, I spent the next 3-4 hrs or so in one. Started lobbing shells into a town from a good distance. Was having such a blast with it's gun sound, must have ran out HE rounds 6 or more times because I wasn't paying attention to how many I had left.

The only downside I've seen so far is, if I'm in a Panzer, all other tank guns will sound like a Panzer's. I don't know if you can do anything about that on your end though. Found it funny that a T-34's gun sounds like a Panzer's when in my Panzer.