I thought the Marines had thier towed weapon. The M40A3! (hehe)
The 82nd abn could use this big time as it would greatly increase ability to stay light with more firepower... I would imagine 101 abn (air-assault) would be heavy on the shopping list as well.
Even if you're trying to be funny, the M40A3 is a direct-fire weapon; the M777 is of course an indirect-fire weapon, better suited to transport by Marine aircraft- rotary wing for now, and maybe the Osprey someday- than the Army's preferred self-propelled tracked artillery pieces.
Though the one pictured here has an Army crew, it goes bang pretty much the same no matter who yanks the rope. Whether it hits what it's aimed toward can be another matter, but both services have some pretty fair cannoncockers and gunbunnies.
![](http://www.army-technology.com/projects/ufh/images/ufh4.jpg)