I.
1. Get srifle_DMR_01_F or srifle_EBR_F marksman rifle
2. Get optic_SOS (or LRPS/PSO) optical sight
3. Place target (some civilian) at 1100 meters from you on the airfield strip
4. Zero your rifle to 1100
5. Try to hit the target
The bullet will fly over the head of the target. If you want to hit the target, adjust your zeroing manually to 2 mils down.
II.
1. Get srifle_DMR_01_F or srifle_EBR_F marksman rifle
2. Get S.O.S. optical sight
3. Get 7.62 sound suppressor
4. Place target (some civilian) at 1100 meters from you on the airfield strip
5. Zero your rifle at 1100 and shoot
You need to set 1000m zeroing and shoot at legs to hit target's chest