I've tried finishing Stop the signal now 10 times, hoping it was just me, but the klingons that spawn die in less than a minute and so do I. Then when you respawn it doesn't give anything on the map or you get the dreadnought and it rapidly spawns frigates which completely overwhelm you. I tried sending a bug report but it keeps timing out on me.
I had to restart that part since after I died the first time with the dreadnought at 5%, it reset because all the NPCs were dead. So I left the mission for 5 minutes. And then I went back in and completed it. But it was still too hard for an experienced player, let alone a new guy.