I didn't really attack it I hadn't picked up the convoy on hydrophone yet. I had dived under and when i put my periscope up I saw the corvette. I was really close because my watch crew was sleeping on the job or something, and so I just put in the AOB and clicked the tick to lock it in and fired tube 1. Got a lucky hit. I was going to go on a surface attack but the merchants were close and so I didn't want to get seen. To T3 tankers at the back but both american
