Of course, the most important aspect of every videogame is its gameplay and this new Call of Duty did its very good despite the fact that it still beta.
The gameplay is extremely fast and this may turn down some people, especially if you're coming from more slowly paced shooters and, that is perfectly fine. The game is not meant to be for everyone, you can expect this to following the trends of Rainbow Six Siege or Battlefield, it's just not what it is. I'm super glad that we have this diversity when it comes to first listen to player shooters because this gives me a choice whether I want to play something slower or something faster and if you really want to play something fast, then CoD MW is the game for you (at least until new Unreal Tournament comes out)
However, the speed and the fast-paced gunplay is and everything. Positioning and tactics in this game are very important exactly because of it very fast paced shooting mechanics. You have to know the map very well and you really need to learn the angles. You want to know where you can position yourself, what you have covered and what or not someone has your back or if anybody can flank you and if they do, you want to know from where it can happen to that you can be aware of that and actively counter it.
So no, by no means is this a mindless shooter. It takes a lot of skill, it takes some time for you to learn the maps and it requires nonstop critical thinking in making choices in order to play successfully and emerge victorious.