Depends what you have in mind as "tutorial". Missions with commentary:
... now go to station XXX and turn ON knob YYY"
are not possible in DW because editor havent scripts and triggers for makink this kind of scenarios.
Sub ASuW Training scenario::
Sub ASW training scenario*:
Udaloy ASW training scenario:
Links to scenarios are in descriptions (under movie)
*- this scenario file havent description in english but task is sipmle - kill random (Rubis, Akula II ir Swiftsure) sub. Enemy sub starts on NW or NE and goes to S
Check my other films -you can learn how to play DW on various platforms.
I also recommend
FPSChazly channel - complete tutorials for vanilla DW
edit:
There is 1 more option: Sub command is very similar to Dangerous Waters. Also many peoples have DW from naval pack - with added SC. In SC training sceanrios have commentary etc. You can install SC, pass all training missions and go back to DW
