Well they could be attacking with one Val...One of the things that bothers me about the game (besides the AI) is the unrealistic OOB.
My God ! They've got every ship that was ever commissioned in either navy on the campaign roster!
I understand it is for playability. I mean, who's going to buy a game that only has enough ships for two, maybe three major battles?
Still, it's not really the Guadacanal Campaign is it? Even though they would have us believe it is.
If I watch one more You Tuber attack another American convoy consisting of 2-3DDs and 4 Cargo ships with 8 Vals imma gonna hurl!
I played for a while, through a couple of the updates and I saw marked improvements, but the combat got a bit repetitive and later in the campaign it became very one sided, my side. I had maxed out fleets and I’d eroded the enemy so much they couldn’t field anything that could compete. It then became a logistical exercise to take the island objectives and I never finished it. As @mTk says, it’s not constricted to historical availability of assets so operational skills needed are…. little.