No aim assist in warthog passenger seat

Now think of this as you will but i feel that there should be some aim assist in the passenger of a hog. Playing joyriders with friends is near impossible now because the passenger sniper cant hit anything. You need to be dead on target or you will miss. I feel like there should be some aim assist not like halo 4 where you were almost guaranteed to hit the person you aimed for but some so a shot will actually likely hit most of the time not almost none of the time. This would make some custom games a little better (again like joyriders)