Sinking A Submarine?

On my first time I sank the ships and managed to dodge the spread of torps one of the U-boats fired, but after a good dc run one of them surfaced and launched a desperation stern shot from 300 meters away, at the same time I finished it off with my deck guns angel2:

Ok, I tried Training mission 1 ten more times, I wasn'T able to sink the sub because I don't hit it at all. All I on my radar is a red triangle that moves. When I pass over it and drop the charges I slows down at once, getting to halt in very few seconds. If it's stationary and I drop my charges while passing over it, it goes to full speed in a few seconds.

I can face the truth, if there's a time limit and subs included in the mission I'm not able to win this mission for I'm unable to fulfil my objectives

Drive over the target sub at 2/3 or slower you will be able to see it better and have a better chance of hitting it.

Yes slower. and. You don't need to use ten at once , click on " Cease"

Funny thing, I surrendered beating the training missions and started playing the german campaign. In the second mission was a submarine to sink and I actually did it!!!. Dropped charges to 150m and hit the sub at 146m