So we just download nwo 227 right? I think you should make this a bit clearer...
You make a copy of the "darkest hour full" mod folder in the /Mods/ folder and rename it "New World Order 2", then simply copy all the files of the mod you have downloaded into this folder, overwriting everything.
After that it should work.
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Except for the unit speed, which is super slow for some reason...