Good news, anomalous trichromats! Like Call of Duty: Black Ops, Call of Duty: Modern Warfare 3 will have a color blind assist mode. On a personal note, while looking up a fancy way to say "color blind," I stumbled upon some tests on Wikipedia. I couldn't see some stupid number, so bad news for me, I guess.
Out of morbid curiosity I turned on the color blind assist mode in Black Ops, and was shocked at the resulting onslaught of vivid color. My kill to death ratio shot through the roof! Nah, I'm just kidding. Color blind assist simply changes the displayed team names from red and blue to orange and cyan. It applies directly to people with a red/green color deficiency. Still, this will be a welcome inclusion for gamers suffering from this affliction. Call of Duty: Modern Warfare 3 is available for the Xbox 360, PlayStation 3, and PC. It will be out on November 8th, and it supports 2 player local and online co-op.