Apparently the campaign on PS4 has dynamic resolution and the framerate dips all the way into the 30s :/
Yeah, ignoring the cutscenes which are locked to 30fps, the campaign's frame rate is a mess in spots. Still very playable but it rarely stays at 60fps for long. Hopefully they can put out a patch to address this, but given how bad it is in some spots I am not optimistic.
I can't really tell if the game has dynamic resolution. If it does, then it's not working very well since the frame rate is so irregular (in the campaign).
Aside from that I'm really enjoying it a lot. Worse visuals than last year's COD, but better gameplay and more content.