User blog comment:Damac1214/LEAK: Black Ops II DLC 3 and 4 release dates revealed/@comment-78.144.238.154-20130614162740/@comment-78.144.238.154-20130614162913

Therefore it's FEAR RU, I am thinking the last 2 letters may be SS so it stands for "FEAR RUSS" connected to Russmen.