I see thank you.
A quick look at
http://www.tarrif.net/
and
http://en.wikipedia.org/wiki/Ordnance_QF_25_pounder
gives the 25 pdr a crew of 6
So the current in-game 25 pdr crew of 8 appears to be an error. And of course with the correct 6 man crew and a load cost of 1 the gun ceases to be a reason to give the Quad the wrong carrying capacity. So if the gun has the correct number of crew then the Quad can now have its correct carrying capacity (7 maybe or 6 judging from the pictures Ive seen) and still tow the gun. Also the quad seems to have a crew of 3, this should be 1 I think.
edit
http://www.geocities.com/motorcity/p...quad_story.htm
says Carrying capacity should be 6 men.