[delvpier]

...Instead of just one design of airfield with different textures is it possible to use a number of different airfield designs.

Yes of course... I made 4 variations of banffc1.tga with different colors and different orientations only for demo purpose... in order to have quickly 4 visual and easily identifiable appearances (I'm not a good painter...)... but you can put 4 different airfields of 512x512 in a "container" texture of 1024x1024... you have to remember that using 4 in 1 technic, you'll get 4 "small" airfields of 1600x1600m and, as mentioned in first post, you'll have to be clever when creating this container... for placement...

upper-left quarter will allways fit in impair line / impair column
lower-left.................................... in pair line / impair column
upper-right................................. in impair line / pair column
lower-right.................................. in pair line / pair column
referring to greed.tga !

I'm working on Demo map... the hardest thing for me is to paint from plans... I tried some technics but I think the best way is to print the plans and to trace them onto paper to have a clean model then scan them to reimport in Gimp or Photoshop for texturing.