From a sign in an elevator. 5 signs someone you know might be a Runner: - 1. Telltale scuff marks on their clothes. - 2. Unexpected scrapes, bruises or broken bones. - 3. Unreliable or unexplained absences from work or school. - 4. Calluses on the palm, knuckle, and fingertips. - 5. A fondness for the color red.
Mercury, or Merc as he's more commonly called by Faith, is the only character not to be featured in the 3-D animated cutscenes while having prominence in the comic style cutscenes.
There was originally going to be a prison level where you save Kate, but they decided not to use it.
There was going to be multiplayer mode in the game, but it was removed.
This game is an "Easter Egg" in the Battlefield 4 single player mission "Shangai" as part of an advertisement on a TV. The commercial asks 3 questions, Do you like to run? Do you like heights? and Do you like the color red? Then the word "Faith" appears along with a sneaker that she wears in the game.