I also play in 4-4-2 (or 4-1-3-2 but it also work on 4-4-2) and the number of goals you score depends a lot on your opponent.
My settings are the following :
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(Comme tu peux le voir je suis aussi français ^^)

And the stats of my best players of last season : so I manage to score a lot of goals in this season
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