Is there a trick for using the FLAK guns?

[Sailor Steve]

Originally Posted by fastfed

Yes its GWX and I understand it should be hard.. But I feel in real life, you give me a flak gun like the one used and have a 4 engine plane come at me, at 200mph, less than 500 feet, I would be able to shoot the darn thing myself ( and I never fired a flak gun, lol )

You really think so? In real life aircraft were a submarine's worst nightmare. More than twice as many u-boats were sunk by aircraft as aircraft were shot down by u-boats. Another factor is that one hole in the pressure hull and your u-boat is now a fairly slow surface gunboat, with nowhere to hide.
http://uboat.net/allies/aircraft/index.html

Trust me, doing it in a game is nothing like doing it in real life.