Warmonger - are you asking if the 9th/2nd A.D.'s has the M41 during W.W.II?
If so, they didn't, it was designed to replace the Chaffee after W.W.II.
The Jumbo's were, like other U.S. vehicles of W.W.II, painted in O.D. .... I'd use Tamiya XF-62 myself.
Happy Modelling and God Bless
Robert