You will remember BF3's co-op mode as the spec ops-esque mission things.
Mr. Black said:Even though there are several thread about Battlefield 4 I saw none of them mentioned Battlefield 4 will not include co-op. Lars Gustavsson said their focus is on the singleplayer and multiplayer of the game and BF4 will therefore not include a cooperative mode. He told this to an editor from a Dutch game website (http://www.gamersnet.nl/nieuws/201303/battlefield_4_zal_geen_cooperatieve_modus_bevatten/).