I think the BF2 arti is too easy to use. "Just click where you want to have it" - a little bit boring. Compared to BF2 i would still prefer an '42 like style with spotter/gunner. Such an important arms branch in ww2 downgraded to click & kill.....hmmm
If the commander (if he's present in FH2 in a similar manner like in BF2) really has to have arti - then maybe it could be devided - a heavy artillery strike every 1 or 2 minutes for the commander (like calling in ship arti) and some Howitzers, Mortars, Nebelwerfer etc. for the rest of the team.