with [C:\Program Files\EA Games\Battlefield 2\BF2.exe" +menu 1 +widescreen 1 +szx 1920 +szy 1200] the hud is stretched but camera view is correct. additionally this makes your zoomed scope weapons (f200, m4, scarL) fill less screen space so you can see more of the sides when zoom shooting.
Oddly, the shortcut edit does the proper FOV(expand the width, instead of zoom in to fill screen) in bf2142