I felt the same. I think it's in part to just how long the first game was (somewhere around 27 hours). New York, California, Nevada, Hong Kong, Paris...and multiple areas within each. Cheateaus, military bases, Liberty Island, research facilities, corporate offices, at least one church, a large ship, and of course multiple sewers...the game really felt big. I can't say there are many action-RPGs that come close to both that scale and variety.