One of my favourite bugs in Battlefield 4 - heck who knows, maybe it was a feature - was its stubborn insistence that I never see too far beyond the first mission of its campaign. Each and every time I logged off of a session, the save would be wiped no matter what precautions I took. Even as DICE moved to clean up the rest of the mess that surrounded the game's launch, that problem remained. Months after I'd bought the game, and after hours of enjoying its increasingly brilliant multiplayer, the single-player was still effectively unplayable. It's quite possible it was deliberate. Perhaps DICE was simply ashamed of another mediocre Battlefield campaign.