Board Thread:General Discussion/@comment-4913740-20130619152258/@comment-1672596-20140331153228

31.200.146.154 wrote: Chico has a sex change and becomes Quiet.

The facts:

1. Chico was constantly ratting on his friends and allies so cuts out his own tongue

2. Skullface says Chico is now "a real man" after raping Paz. He may be disgusted with his own gender to the point he needs to become a woman.

3. Paz tells Chico to "be quiet" ;)

Only way we'd know for sure is A., when the game's released, and/or B. Kojima explicitly confirms this a'la Huey being "the man we suspect him to be" during the TGS 2009 unveiling of Peace Walker.