Hola amigo I think you are referring to this type of mission (Callouts).
https://www.youtube.com/watch?v=f9wNrKL__nE
They are made with mods.
I personally made a callout test (I haven't published it).
but it is hostage a snack shop, only that it is still in development because there are bugs.
My plugin doesn't use mods, but there is a big difference in scenario creation when you use mods than when you just program a callout.