It'd be really great to have different alarms for situations.

For example like in Navyfield you heard an alarm when taking damage so you knew ** is going to hit the fan.

Apart from that an alarm for when torpedos are sighted within your viewrange and when you sight enemy planes in YOUR SHIPS viewrange (Fliegeralarm or smth). I've had some occausions when it said "Enemy aircraft sighted" and I thought it was a plane my Scoutplane spotted and didnt realise that at the same time enemy torpedobombers let loose on my BB. Really helpfull would be more audio from planes when they run out of fuel because the little message popping up and the short sentence easily get lost in the heat of battle.

Those are some small additions that would really bring the immersion up a level and ease situational awarness and threadreaction during battle.