will there be any coop on the actual game?

no

Surely there must be co-op of some sort. No co-op would be so "last gen".

right...because any game that does not have campaign co op is soooo last gen

could it be that perhaps there is no co op because crytek wanted to tell a specific story involving just Alcatraz and 2 main characters would just be silly in certain contexts or cutscenes?

you know just throwing it out there...

Or because making an AI twit follow you around the levels, ruining your plans to **** the enemies would be 0 fun.

that too