On the graph in the campaign there's really nothing to grumble because I think it is for Call of Duty really really well, clearly can not keep up with BF4 the graphics, but they do not have to, because at least here you get a halfway decent story offered compared to the really ridiculous story of BF4. And I love the campaign really fun.
But what really sets the mood right, is the extinction mode. This was reason for buying, because I have seen it in a Let's play from my favorite Let's player and I have been very impressed by there for me. And I must say if you do then gambles himself, it makes again twice as much fun and will certainly captivate me many more hours.
I can not say as much, except that he runs with me smoothly and without problems for multiplayer itself. What is really important to me since the disaster with Battlefield 4 as a super graphics.
All in all I can not understand the big gripes. If too much changed, it is wrong, too little is changed, it is not correct and is a compromise sought then there are again people whom it does not fit. I think you should get involved in the game, and make friends with. Gemotzt is always at the beginning until you have decided that it is not yet so wrong.