Anticipate the gun to hit fou

Anticipate the gun. Assuming that the enemy and you are behind cover AB, the direction of the enemy attacking you from cover B is nothing more than left or right. Predict which side the enemy will output from, and combine the dodge gun marksmanship to predict the enemy's head position to shoot 2-3 shots (not too many, otherwise the dodge time gun + delaying the enemy can cause a lot of damage or even kill yourself).