The four card suits in the international deck are hearts, diamonds, spades, and clubs. Spades and clubs are black cards, while hearts and diamonds are red cards.
Yes, all of the Call of Duty: Modern Warfare games on PS3 have a singleplayer campaign. Some of the campaign modes have a co-op mode, but I'm not sure which of the games has this. Call of Duty 4: Modern Warfare has singleplayer and multiplayer.