Here are some pretty major issues that I have run into:
1. I have trouble in Tanoa of getting the Darter and the Falcon to go anywhere autonomously. Both will stall before they reach the destination and spin in circles. The only way to get them there is to fly them manually.
2. If I send them to a waypoint it is impossible to stop them from trying to reach it even if I delete it or turn off autonomous on the UAV terminal.
Yesterday and today I did some testing. I sent a Falcon to the middle of the map in Tanoa and about 25% into it's flight it started going in circles and at one point even came back to where I was. I deleted the waypoint and flew it to the waypoint at 2000m and went to the turret control just to see it turn away from where I had pointed it. I went into the terminal and turned off autonomous, took control of it and pointed it at the target I wanted to enguage. As soon as I switched back to the turret control it started flying itself away from where I had left it. The Darter and Falcon both do the same thing.
3. If the UAV crashes, even if by enemy fire, I can't control any other UAV (Does not always happen).
4. If I die while connected to a UAV The UAV I was connected to can't be controlled by anyone, including me.
These are extremely frustrating as yesterday I was in a multi-player mission and after taking 20 real time minutes to position 2 Darters where we needed them to watch a convoy, we ended up dying in a helicopter crash. We were not able to re-connect to either UAV, which resulted in a mission failure as we did not have 30 minutes to send 2 more Darters into the area. If real life military UAVs were like this I could understand, but they are not.
