How to install old patch from source code

[JamieG]

Hi

I'm using a SupCom patch level with FAF but I want to go back to a previous patch on the SupCom FAFOREVER folder, I've downloaded the source code but I'm unsure how I install this back again as the folders within the source code don't match the game folders.

The folders in the source code are

Effects
env
etc
loc
lua
meshes
modules
projectiles
schook
textures
units

these don't relate back to the FAFOREVER folder!

Thanks in advance

[PhilipJFry]

game patch files are being stored in the gamedata folder and are archives that have been renamed (the base game uses .scd while faf uses .nx2 and some other for various featured game modes)

[JamieG]

I'm not sure if I'm understanding but within the gamedata folder within the faf folder there are files that don't correlate to the files on the older patches I've got downloaded.

[PhilipJFry]

correlate in what way?
it might be easier to help you if you'd say what you want to achieve