Cool, I don't know about this one, but some of the other battlefields reward a player for playing the campaign with weapons and stuff. So investing in the campaign maybe worth the effort. BF4 could reward you with 1 of 3 weapons at the end based on the decision you made. You could get all 3 by just replaying the last mission 3 times and choosing differently. I always felt that was smart. Get people to play the campaign that way.