I am sorry I don’t get why it’s revered and no it’s not even about the controversial mission which dehumanizes an entire group of people. Basically the entire campaign is shoot shoot shoot, shooting gallery. Zero variety. Zero creativity. Big open areas with constant enemies being spawned. It feels like they were spending little resources on campaign that’s why there is little to no set pieces
Compare that to CoD 4 where there is variety like the calm beginning to All Ghillied Up then saving your partner, Gunship from above, Mile high club. Varied mission design.