You destroyed the enemy zeppelin carrier first of all enemy aircrafts.
You destroyed the enemy UFO first of all enemy aircrafts.
You destroyed the enemy heavy bomber first of all enemy aircrafts.
You destroyed the enemy fighter first of all enemy aircrafts.
You destroyed the enemy tactical bomber first of all enemy aircrafts.
You hit with your first shot.
You destroyed the enemy rocket fighter first of all enemy aircrafts.
You didn't score a hit 20 times in a row.
You've won a battle without losing an aircraft.
You've lost a battle without destroying even one enemy aircraft.
Win 25 online battles against a human player.
Win 150 online battles against a human player.
Win 50 online battles against a human player.
Win 300 online battles against a human player.
Play 30 games in a row without a self-imposed disconnect.