M8 Scott and Indirect Fire

[armyduck95]

Reading About U.S. Cavalry Group Operations in WWII and noticed the M8 Scott Howitzer had an indirect fire capability out to 9,600 yards and these assault guns were used in that Indirect Capacity quite often.

I know it really probably won't greatly affect scenarios with M8s, but and wondering why the M8 Scott counter does not indicate Indirect Fire capability?

http://www.ospreypublishing.com/store/Wo...1849087971