User blog comment:Conqueror of all Zombies/What would you like to see in Battlefield 3?/@comment-2195984-20110210104843/@comment-1840523-20110210182439

2 simple reasons:
 * 1 - the Bad Company storyline is set out in the singleplayer, thus making a singleplayer section needed to make the story
 * 2 - On consoles, many people who buy the games don't have online, thus making the need for a non-online section of the game necessary, otherwise many people wouldn't be able to play it