Never walk straight to a door more than 20 feet away. Zig zag and walk at angles. The sniper is setting up on doorways/entrances and waiting for victi ...more Never walk straight to a door more than 20 feet away. Zig zag and walk at angles. The sniper is setting up on doorways/entrances and waiting for victims to line up on entrance. The hardest shot for a sniper is a target traversing laterally to his/her position (perpendicular, see Diag. 1). hide