Hello gaw, haven't seen you about for a while mate, (but then I haven't been around the forums much at all as of late). To answer your question, the tweak is surprisingly straightforward. I started with a fresh CFS3 install for the MAW package, and once I had that up and running and the config set where it works best for my rig, I made a copy of the MAW install as a fallback. I then made the following changes, (so far):
"aircraft" folder: copy and paste all the folders in the OFF "aircraft" folder, (except the "shared" folder), into the matching MAW folder, allowing any files that ask to overwrite.
"shared" folder inside the "aircraft" folder: copy and paste all the files in OFF "shared" folder into matching MAW folder, allowing any files that ask to overwrite.
"sounds" folder: copy and paste all the files in OFF "sounds" folder into matching MAW folder, allowing any files that ask to overwrite, and then delete all the .gvp files.
Inside the "effects" folder: copy and paste all the files in OFF "flak" folder and "fxtextures" folder into matching MAW folders, allowing any files that ask to overwrite.
"pylons" folder: copy and paste all the files in OFF "pylons" folder into matching MAW folder, allowing any files that ask to overwrite.
"weapons" folder: copy and paste all the files in OFF "weapons" folder into matching MAW folder, allowing any files that ask to overwrite.
"buildings" folder: copy and paste a_hangarl1, a_hangarl2, a_hangarl3, a_hangars1, a_hangars2, a_hangars3, g_hangarl1, g_hangarl2, g_hangarl3, g_hangars1, g_hangars2, g_hangars3, in OFF folder into matching MAW folder, allowing the files to overwrite.
I am still swapping in vehicles, buildings, and such as I run across them to try and have more accurate Great War surroundings, and eventually I will build some missions based on historical events from this arena.
One note to remember, all the OFF aircraft files are tagged for either the United States or Germany so you will only see the plane choices in those countries' plane lists when flying quick combat or quick missions.
Cheers!
Lou