You need to use the editor for the optimal experience. If you look at the description of the mod you can see that all those scenarios aren't actually implemented yet. They were planned in 2019 but I never actually got around to developing the mod to that point. There's like 2 scenarios and both are just taking out a bunch of insurgents.

I made a video explaining how to use the mod in 2019 and it still applies so if you want to play this I suggest you watch one or both videos

https://youtu.be/l9PhVLw-3rQ
https://youtu.be/9MWU22J8Gqs

I'm working on some new features and there might be a patch with the stuff I've worked on the past few days like:

-ability to have medics heal all your troops automatically (You're able to revive all your troops if they become wounded)
-returning vehicles to base and having them go back to their garage (despawning)
-ability to
-close air support (bombing runs and a gunship)
-optimizations to the quick reaction helicopter response times
-new Icons and equipment for Tier 1 Operators
-other minor improvements.

and who knows maybe I'll get around to finishing the scenario mode of the game where you'll be able to despawn scenarios after you complete them.

If and when I develop it I do it in my own time so obviously the commitment is not that big to this project. Thanks for understanding.