I did it in 5 min 41 seconds (its nice we dont need the stopwatch now, because the game tells you how long it took
).
i died 1 time, because I got rammed in the first headon
It was in a LA-7
EDIT:
6 min and 16 seconds in a 109 K-4. I shot them down faster and from greater distance (compared to LA-7), but the turns took to long to get quickly behind my next opponent
