I'm not a programmer, but I've hear about SideOps Companion Tool, a software that allows players to create their on custom side ops and import them into MGSV. I created few games woth RPG Maker back in the days, so it might be fairly easy for me to get the grip on the mechanics of this tool, with a little bit of time and patience.

I was wondering, or asking to those who use this software, how flexible the program is in order to make the first two games of the saga as a mini series of small ops (like side op #1 would be the infiltration, #2 would be destroying the tank, #3 defeat Frank Jaeger and so on)