Video games are becoming more and more physics based in order to create a more realistic gaming experience. Battlefield 1 is one of the biggest first person shooter video games out right now and they did not forget about the physics. In call of duty sniping is very different from battlefield. In call of duty their is no bullet drop so if you aim at someone and shoot you kill them. That is not always the case in battlefield. They take into account bullet drop and drag. That means when using a sniper from long range you often have to aim above the person you are shooting at in order to account for this bullet drop. It ultimately creates a much more realistic experience for the sniping element to the game. It will also do this with heavy guns such as tanks and anti-aircraft weapons.