As far as I know no one has yet made a modern howitzer graphic. This would be a more accurate upgrade of the original Artillery unit, since it serves a different role than the MLRS (rader artillery) unit.

Here are some pictures (of the M119A1 howitzer, currently used by the 82nd and 101st Airborne):

http://www.fas.org/man/dod-101/sys/land/m119a1-1.jpg

http://www.fas.org/man/dod-101/sys/land/m-119a1-dvic499.jpg

Unfortunately, the two best pictures have broken links. You can view them (along with more info) here (http://www.fas.org/man/dod-101/sys/land/m119.htm).

Since this is a light 105mm howitzer, it wouldn't be as powerful as the artillery unit, but it could be made paradropable, perhaps...

Here is a link to download a 105 mm howizer made by smoking mirror.

http://www.civfanatics.net/uploads3/Howitzer.zip

Yes, I already have this one. I'm using it as "Artillery," a predecessor to "Light Artillery," which uses the original graphics. I'd like something a little more modern to use as the final "Towed Artillery" upgrade. :)

I agree with Challenger. I've been secretly waiting for something like this for a long time. It would be as powerful as Artillery, but would be airmobile and could go in rough terrain.