seeking indie FPS for use in indie film Thread

Hello IndieDB! I am an editor on the film Almost Mercy, an independent psychological thriller featuring actors Bill Moseley and Kane Hodder. We are seeking a game to feature in our film for a scene in which the main characters are playing a video game. The game in the script is a splitscreen PvP FPS, although we could potentially use a computer game and create the splitscreen as a composite, since I know that console FPS's are almost all developed by major studios. The film will be distributed worldwide, so this is a great way to showcase your game. Ideally looking for something in the horror/dark genre (ie Doom, Bioshock etc). PM me if you are interested or know someone who might be!

why are you willing to use the game?