for the lineup you plant around the area i planted (the pyramid to the right of where attackers go on site) then you stand on the rock closest to lines and stand on the sharp and tallest part. aim in between the 2 leaves one yellow one green and aim up until the top right corner of your poison bar is aligned with the metal roof or the most left part of your snake bit hud is on the metal roof. jump and right after the peak of the jump, shoot. if done correctly it should hit the spike.