Sledgehammer Games has recently said that those men, and to a lesser extent, women, who have trouble with the red and green markers that distinguish enemy from foe in Call of Duty: Modern Warfare 3, will have an option available to them that will help them out. Red/Green color defiency is one of the more common types of color blindness, so it is no surprise that this is a swell option to have available to those afflicted with the problem. Check out the developer blog post here which has some interesting stats on color blindness for you to enjoy. Sledgehammer estimates that there may be about 1 million CoD players who have issues with color blindness. As a color blind challenged person, I am very happy with this news.