You guys know what I mean.
Mission starts. Everyone ruuuuns to their individual vehicles and floors it for the objective. No waiting for passengers, no plan, just hell-for-leather, must-get-there-first madman driving (including wiping out teammates in front of them).
Person in fastest car arrives at objective. Nearest teammate is at least 20-30 seconds away. So of course the first guy attacks immediately, head on and alone.
20 bad guys riddle him with bullets. Second guy arrives and yolo's right at the bad guys. Results as expected.
Often, the mission fails right here as we've lost too many lives, but even if it goes on now we've got two guys spectating instead of contributing because they refused to wait for back-up.
If we manage to clear out the guards in the chaotic free-for-all that we'll call an attack, then the objective (document, vehicle, etc) becomes a thing that we will kill each other over being the one to pick up - and, again, whoever gets it will instantly bail for the dropoff, ditching everyone regardless of the local situation - they are alone when the enemy back-up shows up and kills them.
This not counting the ones where the objective gets destroyed because some players think that the RPG is the only weapon in GTA.
Anyway, all of this happens because everyone has this burning need to do every mission at a dead sprint and get the kills - and the rush leads to mistakes and failure. Whereas if I solo these same missions, just slowing down to walking pace allows me to methodically and easily deal with the enemies, casually collect the objective and deliver it with ease.
These guys might think they're faster, but I'd rather take 10 mins to complete RR and actually complete it than fail it three times in the same space of time because people don't know how to slow the hell down.