Sub Vs Sub Cold war style

[Nieldo]

Has anyone ever managed to track a sub subout being detected in multiplayer?

If anyone has any tips to share I would like that, I find the idea of beinh right behind someone without htem knowing very intresting :P

Also, is there anyway to go silent other then ordering full stop? Or will you always show up on narrowband no matter what if your close to a target.

Thanks for the replys