The majority of the regiment was equipped with towed 40mm Bofors AA guns, but each battery was assigned a small number of these gun trucks. All the images I have seen appear to show them in the early-1944 "Italian Pattern" camouflage, even those photos taken after the end of the war.
On the wargames table it will be used mostly in a ground support role, hence the "posing" of the Bofors. I dont think this is much of a stretch - a number of the photographs of the South African guntrucks show them (posed for the publicity cameras or not) with the weapon at a low elevation. Besides, due to Allied air superiority during the Italian campaign, the AA units were very underemployed in their primary role, so much so that the heavy AA batteries equipped with 3.7" guns were retrained to fight in the anti-tank role.