This guide was created aiming to contain the least amount of spoilers possible, however it may contain one or another. I apologize for that. Also, at least not for now, I do not intend to give a detailed strategy for The Mercenaries mode.
It was also written for the Japanese Xbox 360 version of the game, but it should work just fine for the US and Playstation 3 and PC versions. If you're playing the PS3, PC or the US version and notice something different, please, let me know. Read more at OCModshop.