It is somewhat assisted. Best way to see that is try to use the O button at the top of the box, rather than from the wide areas. The O pass behavior is locked/changed to a crossing behaviorI don´t see any assistance in crossing direction-wise (full manual controls), even without using L2. I can even point them into my own half, if i want to.
The only thing is the change of ball curve as soon as you reach a certain range to the box. Without L2, every cross is driven one and lob passes for example are not possible anymore.
I still don´t feel to be perfectly in control when executing headers with the shoot button. If i use the passing button instead, you always get a feedback from the player trying to head to the ball. Using the shoot button, it is like a 50% chance to see an effort.
Maybe i am doing something wrong? How do you execute headers? Are you just tapping the button or does the power bar load influence the performance?