Defenses can do some pretty complicated things in Madden 12. Knowing what the defense is doing before the snap can lead to huge rewards. The guys over at madden-school.com put together a video going over how to make your pre-snap reads so you can always tell if the defense is in man to man defense or zone defense. They go one step further and talk about how you can tell the difference between a cover 2 and a cover 3 defense.
what about cover 4, or cover 6?