Complex sentence: He always survives Helen's 3rd scenario and assists Helen by giving her a pistol, and if Helen has met the qualifications for the A ending he will rescue Helen from being pulled into the door with Scissorman.
Split into simpler sentences: He always survives Helen's 3rd scenario and assists Helen by giving her a pistol. If Helen has met the qualifications for the A ending, he will rescue Helen from being pulled into the door with Scissorman.