there is really a ping problem with some ASW missiles :
stallion, SSN-27 and starfish.
most of them can be heard, but sometimes there is one of them totally silenced (say 1 for 6 to 8):
no spike on active intercept and no ping sound.
this result in a very stealth torpedo you just can see if you are watching you sonar.
As I play many MP games, it's not a speculation, it is just a fact.
Of course, evading this silenced torpedo is almost impossible, as you have to know there is torpedo to evade, and you usually know it by the ping sound.
To avoid this silenced torpedo, you need to stick to the sonar.
You will hear each asw missile falling in the water (torpedo in the water bearing XXX) but you are unsure you will hear the torpedo pinging you ...
this problem happen
ONLY in MP games, it is like some of these ASW missile just don't send active information when they enter into water, in some case.
quite nasty ...
