I did not enjoy my expweience in games with subs weather trying to kill them or playing them. They are too historically inaccurate. First unlimited aircraft on carriers now submersible speedboats with weared unrealistic vision mechanics.
I was looking forward to subs as I play several sub simulators but there is nothing that I can see that makes thes subs rather than sinking ships as they appear to be equiped with windows when underwater.
Ill give it a few months then possibly try again and if subs are everywhere Ill probably give up playing.