Actually I would prefer a wirblewind, since it is very difficult to hit anything in the Ostwind that is not flying directly towards you.
Its x4 guns, with its much higher rate of fire 20mm's would make hitting an enemy aircraft much like it is in the M16, fairly easy, and the x4 20mm would effectively be even more deadly, than the single 37mm.
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Vermillion
**MOL**, Men of Leisure