Board Thread:General Discussion/@comment-6747658-20130401084750/@comment-8533262-20130511144224

I still believe that it's The Boss' father or maybe The Boss' war buddy, who would be definitely not fond of how Snake carried The Boss' will, or wanted to get revenge due to her death in the hands of Snake. The Boss was such a character that I believe Kojima not only wants to make a game for her, but maybe wants to expand her (back)story more.