You’ll get a different POV from any one of us, but I could see Iran creating a scenario similar to Afghanistan but a lot more violent.
This administration wouldn’t have nearly the same restraint, and it would likely be a huge mess until embarrassment makes them step away and finally let experienced branch leaders make Independent decisions again, or at least stop removing the more adaptable minds who are “too diverse” or are considered “dei”.
It’s hard to say if Iran can even safely mass forces without Israel and the US exploiting air superiority.
I do know the terrain looks miserable, and makes it more difficult to force entry, broadly, like Iraq.
We just have to wait and see. So far it just looks like we eventually walk away embarrassed (which I’m fine with because there’s a lot less loss of life), or we’re stuck in something long lasting and stupid.
The specific theater tactics aren’t anything special, aside from drones everybody is doing either the basics or the more advanced version basics. Iran seems to be using the most improvisation to survive, so far.