[caldrail]

You can make from from white markers - I did that on the Zimbotho beta - but I should point out that painted runway markersare a modern trend. Runways in WW2 weren't likely to display them (you want to show the enemy where your runways are?) because air traffic control developed from the end of world war two. Okay, in a primitive form it existed beforehand, but radios in aircraft were novelties at the start of the second world war.

Pilots before 1945 had a great deal of autonomy in deciding where to land - not being so bound by voices in their helmet loudspeakers, and only with the advent of radio direction from the ground was it necesssary to identifiy which runway was which. Historically then runway numbers are inappropriate for WW2