Ah ok, you found the Ranger Task Group supporting the invasion. I used a Wasp class to fill in for Ranger CV-4 since not available for SH 4. The CVE was representing Suwanee CVE-27 with Cleveland CL-35 plus the DD's.
Yes, would be a juicy target for a U Boat. There are submerged torpedo firing AI u boats in area, so could possibly attack force. Only had it happen once in testing. Of course since the AI sees submerging AI vessels as surfaced, they spotted it but it was dawn and sub was close enough to fire, one torpedo hit a carrier.