Example 1

You and your teammate are shooting together at an enemy aircraft, dealing several Critical hits. Your target crashes within 90 seconds. The “frag” score goes to the one who inflicted the heavier Critical damage. The same situation will occur if the timer expires, and none of the other players managed to deal any decent damage to the target.

Example 2 (same rule as before)

You have given critical damage to the enemy aircraft after which it was able to continue the battle and after 90 seconds, got hits from an ally and then immediately crashed. In this case destruction will be counted for your team mate because of your Critical Damage has lost priority.

Example 3

You have given critical damage to an enemy aircraft and it crashes after 90 seconds. In this case you will still get the kill counted for you if the hits of other players does not lead to the destruction of the aircraft.