If Supcom2 has one, why not FA? There was a supcom2 texture pack released a while ago that used the method of doubling the size of texture dds. If it was made it wouldn't interfere like a desync would it?
Link for the supcom2 one.
http://www.moddb.com/mods/scale-mod-fa- ... xture-pack
Edit: Proof of concept on a Megalith + Ground texture. Top is new, bottom is old.
http://imageshack.us/photo/my-images/832/megapn.jpg/