How long is the Modern Warfare 3 (MW3) campaign?

If you want to know how long the Modern Warfare 3 campaign is, read on.
How many hours does it take to beat the MW3 campaign?

Call of Duty: Modern Warfare 3 (MW3) - How Long to Beat the Story Campaign - SAMURAI GAMERS

MW3 campaign mission list - how long is the Modern Warfare 3 campaign? - Polygon

CoD Modern Warfare 3: when can you play the campaign, multiplayer, zombies - Meristation

Call of Duty: Modern Warfare 3 completes crucial year-end release slate

How long is MW3 campaign? Time to beat - Charlie INTEL

Modern Warfare III's Ambitious New Campaign Mode Lets You Play How You Want - Xbox Wire

MW3 Early Access: When Can You Play The Campaign? - Insider Gaming

Full Modern Warfare 3 Campaign Playthrough! (Max Graphics)

How long is the Call of Duty Modern Warfare 3 Campaign? – Destructoid