I think the ostwind has some kind of bug, because if you fire intermitently, suddenly some bullets appear at the distance instead near of the cannon. I mean they look like if they were fired at 1km (from the vehicle!), meaning that they traveled instantly a big distance. They "materialize" at 1km instead on the barrel of the gun. This gives a very big advantage to some shooters because he/she can decide where to put the bullets instantly, and to kill planes because of this bug.
Another two issues that I have observed in the Ostwind is that
1) When a countinously firing Ostwind is viewed from the outside, the bullets appear to be fired from two cannons, one after another in each cannon.
and
2) This bullets start flying aproximately from the center of the vehicle, and not from the center of the cannon.
This factors make the ostwind somewhat unrealistic and give too much anvantage for some tricky players like me.
I wish you could fix this things in the ostie. Thank you