Yep. The single-player campaign is available for everyone, but the people who pre-ordered got to play it a week early.

The shortness of the campaign could be a contributed to a couple factors: there were rumors that MW3 started off life as DLC for MW2; the game developer Sledgehammer Games had come out and said they were initially tasked with developing Advanced Warfare 2 (I think) but that project was cancelled and they pivoted to MW3 and got that completed in 18 months.

Either way, the campaign is a big disappointment. Multiplayer seems to be getting enjoyed by a lot of people, though. Haters gonna hate.

Early Access to the single player campaign is a pre-order bonus.

Deriving the Formula.

Does the total time seeded mean how much combined time you’ve spent connecting to other people and uploading to them? Because that works out to about 1,000 years.