I don't get a radio message or a mission complete report. I got recalled to base, so went back to base - and when I press escape to view the results it says for the objectives that I've been successful in returning to base.
If I then hit quit it takes me back the the main menu and I have to restart the campaign from scratch. It just doesn't seem to register with the program that I'm back at base and it's time for the next stage of the campaign!
Here's a screen shot of when I get to base, just to show you I'm in the right place:
http://img407.imageshack.us/img407/8485/simcap02pu3.jpg
I tired to take a screenshot of the results page where it says the objective of returning to base has been successful, but for some reason it won't capture that.