Well, I got it to work. I don't know why, given that it's USB, but for whatever reason windows wasn't picking up on the turtle beach one and would only pick up on the realtek one, so once I set the microphone in windows to realtek, it worked in Aces High III.
What is weird (to me) is that now, in AH2, it only works if I switch my mic/voice to realtek. If it is on turtle beach it does not work.
In AH3, it works now regardless of if it was on turtle beach or realtek.
This used to be swapped, with it working on AH2 but not AH3.
"whatever" - it works now.
Thank you for your help Bizman as your explanation did key me in on what needed to happen (having windows and the game in sync with each other).