Hey guys.  I just wanted to introduce myself.
I am a professional sound engineer.  
I was directed to your site by a Tweet from this person ----> 
http://twitter.com/#!/Linux_GamingWhen I saw you were looking for help, I immediately wanted to offer my services.
I own a 24-channel, vintage British analog console and a closet full of a wide variety of microphones.
The information in the Wiki is slightly overwhelming.  I know nothing about the licensing information which you speak of, and the only game audio engine I've ever used is Audiokinetic Wwise.  I have modded the audio of the game "Cube" (the original version of Assault Cube & Saurbraten) on countless occasions.  I am 100% absolutely familiar with recording gun sounds, alien sounds, footsteps, deaths, doors, etc.  I just need to get my bearings here if I am to be of any help.  Anyone feel like holding my hand for a little bit to get me started?