Color Blind People Can Spot and See Through Camouflage much better than a person with a normal vision.
Color blind people have to learn to understand texture on surfaces and different shapes so that they are better able to differentiate and recognize objects. Due to this learning, their vision allows them to spot camouflage that would have easily fooled people with normal color vision.
During the WWII, color blind people hence helped a great deal in spotting camouflaged enemy tanks and soldiers. This ability can also make them great hunters as they can spot the hunt from far when a normal color vision eye cannot even spot them.