I dont think you can and I wouldn't wish that on anyone anyway, I wouldn't even want to be subscribed to myself tbh

I'm just a lot of randomness and swearing usually.
Not at all, I don't even like FPS games so they'd never be able to attract me to the series. As I said above they don't have to redesign the games, I have played them and on the pure gameplay side of things the games handle and feel nice, but that's it, and that's the only thing they've ever gotten right since 07. Which is fine, they don't have to completely change a games core feel to becoming an innovative sequel, infact hundreds of games have ruined themselves by trying to innovate (DefJam being the biggest example I can think of).
Go take a look at Far Cry, sure it isn't perfect, far from it, but its the only AAA franichse I've seen recently that tries new things. Granted they haven't done them perfectly but they have tried and on the most part succeeded. You simply cannot deny that CoD has attracted an audience that is corrupting gaming as a whole, every series is being infected now, I'm actually worried as to what TES VI will be like, whereas before, pre-Skyrim, I was absolutely overwhelmed with excitement.
It wouldn't kill them to add an animation to that knife kill would it, or remove the multiplayer assists everyones forced to have, or expand the map sizes, add in high player limits, vehicles etc.. That does sound a lot like Battlefield but there's an old saying I learned in college; talent borrows, genius steals.
And no, that doesn't apply to all of the other developers who are pathetically trying to dumb their previously successful, amazing series down to a painful level to attract more sales, that's called trying to lazily make money off another series fortune.