I was playing around with the key binds in My Documents when I found keySurrender. I binded it to the ']' key (27) and went to test it out in Arma. This caused some kind of glitch where the character would surrender, however would be sent flying across the map. Was quite funny for a while.
I went back to my key bind list and found that 27 had been binded to keyNextAction. So maybe the two of them creates some weird conflict. If anyone doesn't know, you find the key bind list in your "My Documents/Arma 3 - Other Profiles/PROFILENAME" folder. Open the the file with Notepad.
The lines I'm talking about are:
keySurrender[]={}; //I've changed mine to 27
keyNextAction[]={1048581,27};
You can see here what happens for me, http://youtu.be/npYUTcnglMA