Actually there is a limited variety of usable figures in 1/72 military, other than the ground crews. Prieser has had 1/72 sets with civilians but they are out of production and scarce.Wouldn't those be British OO "scale" or 1/76 4mm to the foot models. If you want more 1/72 start looking at the military modeling sites where this is a common scale.
OO scale figures work because the figures are about one millimeter short, which can be compensated by making new "shoes" and blending the old shoes into the pant legs. I wanted the seated figures in the set which wouldn't matter if the figure was "short".
Was just surprised the Branch Line figures were "tall" OO scale.