Just bought 688i off steam and noticed a few odd bugs.
One is that the sound for the towed array being deployed doesn't turn off by itself, you have to manually set it to 'off' before it will shut up.
Secondly, the third training mission 'Virginia SLMMs' is seemingly impossible
Try as I might, I cannot get SLMM 6 objective to read as 'completed', I've fired dozens and dozens of damned SLMMs at the co-ordinates but it refueses to accept I've put it in the correct place.