Crashing (Uncharted 4: A Thief's End)

who passed from the members of the forum? Is it generally realistic for normal people to pass? In a couple of missions there are no checkpoints at all, now on mission 20, 10 they shoot at poor Nate at once, and they hit him even when he is in the fall. Grenades are thrown into places where it is unrealistic to get an Irl, violating the laws of physics and logic