The way USA on and off works is the same, but the scopes are different (a 6X in BF2042 is not the same as in BF1/BFV etc) and most importantly the hipfire sensitivity is also different, likely to better accommodate very high DPI with the sensitivity range in-game.
In other words, you can re-use your USA settings as long as you also had all the scopes set to the same value.