I think this video sums it all up nicely:The series just hasn't evolved quick enough. The innovation comes really slowly with this series for some reason. Its also become a milk the consumer for every penny they have kind of deal now. You get Advanced Supply Drops which increases the chance of you getting great guns which is entirely wrong and basically = pay for advantage. Of course you can get these weapons in normal supply drops but then its much less likely.
They've also completely fudged up the meta game. Instead of getting the best looking Camo by spending time with the weapon you can now drop £3 and get a better looking camo than the ones the game comes with. The map packs have become so over priced and now they're giving guns away in map packs which therefore can mean pay for an advantage. £35 for a season pass? Really that's a lot. Furthermore there is no end goal for the casual CoD player. Before Xmas I was prestige 10 but I knew I'd be too busy to play come Jan so I thought I'd be max prestige by April or May, nope, just add 15 more prestiges....so I stopped, no point, I'd never get that.
Instead of challenges unlocking cool gear, its random and you pay for a lot of the better looking stuff. So the meta game is fudged really.
The map design has become the biggest joke ever, everything is so CQC focused now and you can go to the end of the map in less than 15 seconds most of the time. I remember MW2 days where you had massive maps and it took a degree of skill to seek out enemies and kill them, now its just run around the map with your head cut off like a chicken.
They've also really screwed up weapon balance because everyone runs around with an ASM1 or BAL. Okay in previous games you always got a fav weapon loved by the people but all the other guns were almost just a good. In AW that's honestly not that true, same with BO2.
Now we've got the stupid future game coming out with robot arms, made up weapons and even smaller maps and less innovation than the last game.