Just got the confirmation and the Vic point increase- Soryu sunk while attempting to reach Manila.ORIGINAL: Itdepends
About a week ago in my PBEM I had a large amount of radio tranmissions sig int message at Kendari (I'm allied). I vectored some subs into the area and sent a long range recon flight over which spotted a CVE in the base (it was actually one or more CV's). The next turn my opponent sortied (realising he had been seen) and one of my subs put a couple of torpoedoes into a fleet carrier. I don't think it sank but still, I'm smiling.
First CV sunk in our PBEM (and it's Jan 1943!)