I downloaded this last week when it went on sale. Did all of the training missions. Still need a lot of work at it. Decided to do the mission where I hunt a November (i think). Anyway, I found him and fired 2 torps about 30 sec apart. Not knowing what I'm doing I went active on the 1st and watched it circle the sub a couple of times without hitting it. The second went active and homed in for a hit. Well wouldn't you know it, the 1st torpedo locked onto me and hit. I survived, the bad guy didn't.