1939. Grey Wolves supermod. OK, so I've heard what most of you do in 1939 is destroy ships while surfaced. I seem incapable of this... My problem is, one of three things happen:
1. I attempt to gun it down and either my efforts are fruitless or I've wasted 100+ rounds when it would be much easier to fire a torpedo.
2. I fire a T1 torpedo and the merchant dodges it.
3. I fire a T2 torpedo and the merchant starts zigging.
Please assist... there must be something I'm missing.

Oh, yes, and I very much prefer T2 torpedoes to T1. It's just my personal preference, but I hate hate hate the bubbles on the surface from the T1 unless it's nighttime, in which case I prefer T1 to T2, but most merchants I find I find in the daylight.