1) always approach a convoy, headon/rearon to the closest escort at 'silent running'
2) pop scope
just above surface for 1 sec max when in the convoy
3) target and fire, then immediately dive to max depth.
4) turn to course +- 45 degs to rear of convoy course. This course determined by rear escort ?
5) Use convoy ships as cover as needed
6) DON'T BE GREEDY - there's plenty of time for another attack ?
All at silent running of course
