Go back to Gori after any mission in the East Wind.
Exit by choosing "Abort". (There is no other way.)
Exit the game completely.
Start the game.
Choose single player -> campaign
Choose the latest mission in the list. (Called "Gori")
The game loads a user save from in the middle of a mission, some time ago.

I'm replaying the East Wind campaign before trying out Apex. On successful completion of a scouting mission, I return to Gori. There is no way to exit the game in Gori without choosing Abort". (I can't remember if that is normal behaviour.)

That would be fine, except that when I return to the game it loads some random save from some time back. The first time, it reloaded the supply mission, where I had to steal the truck. Now it is reloading the vet mission, where I had to find a medkit. The last mission I did was a scouting mission where I completed illegal weapons and enemy checkpoint in the same scouting trip.

The vet mission was in a previous scouting trip and the save loaded was a user save that wasn't even the most recent save in that trip.