I agree with original poster. There were some missions such as ricing a sanchez whilst Big Smoke tried to shoot the gangsters on the train which as quite hard in my opinion. For such an early stage of a game that mission took some time. In addition the mission where you shoot the RC planes with a minigun was quite tricky.
This was the most unrealistiv part.....why would any complain that they thing they were shooting at was too close! We've all failed that mission countless times because that fat pillion wanted to take long shots and ranted more than shot.....no grudges there