So you can safe your state.json file into the missions folder.
Here's the full instructions for making your Liberation installation place state.json in your Missions folder.
This particular change to DCS_Liberation was proposed and accepted, and will be a part of Liberation starting with the next release, but for now, we'll continue using this work around.
If you run liberation missions you will be happy to know they will run with state on Fox3 Servers, the missions need to have the save location modified and the above instructions will walk you through that process.
You would load your liberation mission then run it, at the end of the run it will create the state.json file so you can take it back to the Liberation client and load the data for the next turn.
Download the Liberation here: