Why BFCOD?

Serious question to all the COD players who have joined the BF players (welcome BTW).

Why is it that you have a left a game that you loved because they have ruined it and turned it into something it wasn't or shouldn't be, to come to another game franchise and then try to do the exact thing to that game that happened to your previous game?

Surely it would make more sense to make this game better in it's own right and not try to make the same mistakes of previous generations? I get people like what they like but surely if you liked it that much then you would just stay with COD or try and make the COD developers listen. 

I love the fact that there is a huge influx of players it makes battlefield better but why come to a change of pace to only twist it to what you just came from. 

Also BF devs you should't be trying to just scoop up as many consumers as possible by trying to appease everyone, that never works. You should stay true to your identity and branding which got you to where you were in the first place not bastardise everything and make some mutant baby of both BF and COD.