Load the saves in order and finish the case. Wait at least 1 hour between saves if you want to unlock them online so the timestamps look...
The 1000G saveset is missing 3 achievements. This save will make it way easier to get those.
File Name: Red Faction: Guerrilla Revolutionary achievement (100% save) File Submitter: StreaverFile Submitted: 10 Mar 2015 File Category:...
This Savegame unlocks the Revolutionary achievement as soon as you start any guerrilla action. I don't know which other achievements are...
Separate names with a comma.