BF3 or BF4?

So to compare teamplay between BF3 and BF4 ....
teamplay was just as little in BF3 as in BF4 only there was 1 difference in BF3.
It was not only played metro and the medics were still shit for their own lives .. which is why Sani-pack was always with us
in BF4 you can just run away, .. or everything "one-man-army" like killn that was not as easy in BF3 as in BF4 but both games have one thing in common compared to each other lack of team play - team support