an updated version of the Mission Control Center Sandbox 4
for Arma 3 which he released on the BI forums
The changelog is very long and can be found on our downloadpage.
Quote shay_gman :
We are proud to present you the new version of MCC called MCC Sandbox 4 (beta). MCC Sandbox 4 holds a compete new GUI and complete new AI system GAIA.
Since we did not want to hold the release for video's, large words files and professional art, here you have it. So stay tuned this week for detailed information on how to get the most out of this release! (video instruction).