Well, this is new. When a developer talks about length, they're typically referring to the single-player element.

And that's because the multiplayer has no story and hence, no beginning and no end. But many games allow you to rank up online and some fans say, "I wonder how long it'll take me to reach the top rank…" Well, in Crysis 2 , that process will take around 60 hours . And here's a progression video: