envy envy envy envy envy. ea mother****a why not new engine on pc? grrrrr
orion, for line settings, i'll repeat my suggestion of comparing the game side to side with some real match with a pretty zommed out camera, so you can watch the entire action and the distances each line of players should cover.
this is the best video i've ever found for the job
https://www.youtube.com/watch?v=7EOgXAJUzNE
let cpu vs cpu playing with these same teams on broadcast camera with very little zoom and height and compare very carefully: height, lenght, width, marking and fullbacks. just try to emulate the real thing, it usually ends translating well to gameplay when i use this approach (i've used it in my old-gen set, same reference match).
good luck!