The first game to include Bernie Mataki, a character who has a major presence in the book series that fills in the gaps between the games.
In order from the first game to this, the third one, the Carmine brothers' initials are ABC. Anthony(A) Benjamin(B) and Clayton(C).
Ice-T brought Bodycount back together to record a song for the game.
Minnie Driver was originally hired to voice the supporting role of Samantha Byrne, but was fired from the role after it became apparent that she could not shout loud enough while recording combat lines. Additionally, Drake was originally hired to voice the supporting role of Jace Stratton, but blew his voice out recording combat lines and decided to vacate the role. In the end, both roles were voices in the final product by Claudia Black and Michael B. Jordan.
Exclusive to Microsoft's Xbox 360.