Here is a couple of my favourites.
I call this one "SURPRISE". Basically I crippled a Flower Corvette and while the destroyer in the background was busy looking for me. I then sneaked up and surfaced to the opposite side of the Corvette. Once surfaced the Destoryer started to pound the Corevette thinkin it was me

. Of course the Corvette was trying to get me but it was pointless as I was too close. Once the Corvette took a few hits from the Destoryer it returned fire at the Destroyer. I then slowly slipped beneath the water level and let them battle it out

. Of course the Destroyer won but not before the Corvette managed to disable the Destroyer. So once the Destroyer was disabled I sailed on over towards it and fired off a torpedo to finish it off. It sure was alot of fun that scenario.
This second image and scenario I call "You Can't Touch Me". Basically in this battle I came across a massive convoy. I managed to sink a few ships but the Luxury Liner I only disabled

. Of course by this time I was out of torpeddoes and the Destroyers were desperatly trying to get me as you can see from the following image. So what I ended up doing was sailing over to the Luxury Liner and positioning myself directly under it. Once I was directly under it I went into silent running and dived to max depth. After a little while the Destroyers gave up on trying to get me and sailed off to join the rest of the convoy. Once they were out of sight I then positioned myself and sank the Luxury Liner

. Then as my luck would have it. One of the dam destroyers returned out of now where and tried to get me. But I manage to slip away again and return safely home

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The third image and scenario I call "Taking The Sting Out Of The Flying Porcupines". Basically its just having lots of fun shooting down the Sunderland aircraft. I dont know why some people get scared of them and dive. I just set my speed to flank and keep changing course while I am attacking and shooting them down

.. Its one of the best parts of the game IMO

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My final image for now is the Bismark and I after taking out the enemy battleships and crusiers

....