we7god
Kreisklassen-Profi
It worked very well without communication, and the other players behaved correctly so it was a good experience. It was my first co-op in GTAV, by the way, and I have a terrible connection but felt smooth.
I did some photos to you while you were driving the cop car (you looked a bit like Vin Diesel), will upload them tonight if I remember.
At 3rd heist you will probably fail at the last prep mission without headset communication - the same for the 3rd prep mission in 4th heist.
There you have to kill targets well coordinated at nearly the same time.