The Metal Gear primer: everything you need to know

The Metal Gear legacy spans quite a bit of time. So, don't be embarrassed to admit you may not remember everything. The hype around MGS4 is legendary, and we're sure there are bound to be newcomers to this PS3-exclusive adventure. For n00bs and veterans alike, Joystiq has written a helpful guide that goes through everything you "need to know."

For example, did you know Raiden's real name was Jack? BUM BUM BUM!