Well here is something that is very interesting and really sounds like a lot of fun .. who said FSX is only for the airline driver now after looking at the possibility's here , down load and and a couple of tutorial video's and download site, some that making the old FSX expand even more. https://www.fsxwar.com/#download
The great thing is they have created a couple of tutorial video's , be well worth a watch, seems pretty simply to me.
This say's FSX@WAR and it is for use with TACPAC, since I brought TACPAC for P3D , I cannot see any problem building a combat zone or even add this to the Waioru scenery for target practice into P3D.
This will really breathe some new life into this old FSX platform, they do have a forum there to read thru and trouble shoot, maybe the question has already been brought up for P3D Operations.

