Yesterday I was flying some routes on the most busy airports on FNF. When I on short final, Tower quit the session and the airport went to Unicom. So far, so ok. I did my normal routine and told my position and what I wanted to do on Unicom. I was approximately 1000 meters away from final touchdown. Two c130‘s entered the runway after tower left. And tower didn’t told them to enter runway. I told the other aircrafts my final approach two times. No reaction. There was also someone of the staff on the ground. As you can see on the screenshot. So I started my go around. But I was really unsatisfied how this situation went along. This is the expert server on FNF and not casual or training. And this happens quite as often imo.