Yes dreammaker they are just as lethal and have the same range. The field gun is steadier than the Ostwind, and has a slower rate of fire than the Ostwind. Make sure your Ostwind is parked on concrete, put it in neutral, kill the engine(this allows you to hear cons diving on you), page your view all the way up and fire fully zoomed in watching the tracers not the gunsight. I will only engage cons at a range of 1.5k or less in both. The flak gun and the Ostwind are lethal out to 3k plus, but firing at something that far away spotlights your location. Only engage cons that far out when there are only a few enemy planes. If your base is near over-run then keep your engagement distance shorter. It sucks to be on the receiving end of one thousand pounds of high explosive! Good luck to you sir.