Nomad is changing many game .lua files.
To update those files, you need to compare them, and merge all changes from the FAF lua files to the Nomad lua files.
Then you have to adapt/rewrite the additional nomad functions to work with the new FAF environment.
Thats all
I calculated for myself 40-50 working hours for updating nomads.
So this will make you crazy while updating, but awesome famous if you did it