This is the Grand Finale of the Secret War campaign. The other five missions are here:
SW01: Operation Sandbox - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2843733867
SW02: Operation Thunder - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2844476201
SW03: Operation Romeo - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2845020540
SW04: Operation India - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2845021478
SW05: Operation Kilo - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2846434672
SW06: Operation Echo - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2848892354