The first option would be a funny reversal of how submarines first behaved back in WW1, where they had to travel on the surface for long-range movement and only dove underwater for the actual attack.
At the beginning of the war they would surface, ask the victim ship to surrender, if they didnt, the sub would start firing their deck gun. It was only after the merchant ships got some weapons of their ownthat they started to do submersed attacks.
The first option would be a funny reversal of how submarines first behaved back in WW1, where they had to travel on the surface for long-range movement and only dove underwater for the actual attack.
At the beginning of the war they would surface, ask the victim ship to surrender, if they didnt, the sub would start firing their deck gun. It was only after the merchant ships got some weapons of their ownthat they started to do submersed attacks.
(IIRC)