War Thunder – How to tactically shot down two Polikarpov I-15 in a Messerschmitt Bf-109F-4

Just discovered a pair of Chato’s in my 6 after a steady climb, so I first dove to gain speed and after that I started to climb at constant speed at my best climb rate. Over 5000 meters of altitude they could not reach my climb and started to attack them and repeat the same procedure until both were shot down.