AS for the helos. I like that they can find and lock targets. I find that this is one of only 2 advantages the FFG has against subs.
Also, I don't see the helos knowing where a sub is as unusual. follow my logic: A computer will always be faster than a human, that's a given. Now, if you place a dicass in the water with the helo and only moments after it goes active, the helo has a sub, think of it not as an all seeing helo, think of it as just classifying the sub quicker than a human ever could.
subs have one huge advantage over the FFG. they can go really slow and quiet and all they need to do to see the FFG is go to periscope depth and pop the periscope. The FFG can only listen or give away his position using the active sonar.
However, the FFG has only one thing to counter subs that can simply pop the periscope. The Helo that can prosecute targets almost single handidly.
Think of the helos seeing the enemy subs as simply a really really fast human. If you have the enemy sub on towed array, and/or have a tma, likely the helo knows too and will home in and find that sub. It won't look like what a person is doing, but it's roughly the same thing...just faster.
And if sub drivers get scared, they should be. The FFG was created to kill subs with helicopters. You should, by all means, not get picked up on the FFG's sensors.
The other great thing the FFG has is a towed array that tells you it has a contact, no matter how thin the broadband signature is. That little chart at the top left is incaluable.
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