Modern Warfare 3: I Have Conflicting Thoughts

I'm still haven't decided if I will be purchasing MW3. I was leaning towards no, but then I played the Beta. The beta was awesome. Call of Duty's gameplay gets better and better every year. I am so down to play on the OG MW2 maps. I'm a core multiplayer fan though and I am worried that Warzone, DMZ, and zombies will get more attention than the regular multiplayer content. That's where I am still undecided. I am increasingly becoming less interested in COD since it feels like Fortnite with the skins and whatnot now. Call of Duty is evolving in a great way (for the most part), but is it for me?