I expected an install...
Uncharted 2 and KZ2 are pretty much straight paths. Their online components have fairly lengthy loadscreen before each match [Killzone2 has a long one before each main mission in the campaign if I remember].
inFamous, GTA4, AC2, MGS4 - These 4 games offer much more open gameplay and they all had installs.
We're talking about a game with a 2000 page script that can change paths dramatically depending on what you do in a single scene, here.
4 ≈ One







