FX in game and more tought

[stratege1401]

some tought:

- ships are sinking way too fast...
- ships are always sinking in one piece, titanic sunk cut in half...
- subs sink always put nicely on the floor ... or so...
- discovered that subs going veeerrrryyyy deeeeeep are shreeded, witch is fun, but subs hit by torpedo should have more way to die ( shredded, cut in half, losing parts, being cut a half diving another going up ...)
- helo flying time should be cap, refuel should be needed

This is a PC games, we might be able to deal with more "FX", some pieces from sinking ships could sink faster or stay afloat...