Loving Hardcore History with Dan Carlin
A. Nautilus Non-Torpedo Attack TEST: Roll 2d6 and compare the modifed result to that Ship
token’s Defense Strength. The DRMs are:
+1 if making a Stalk Attack
+1 if the Nautilus is upgraded with a Strengthened Prow
+X for any one Exerted Ship Resource (maximum of one Resource)
-1 if there is any other revealed Warship in that Ocean (besides the one targeted)
Agreed that there is no place explicitly telling you NOT to use modifiers with Torpedoes...but if you read the rules exactly, there are no modifiers mentioned.
Also, it's in the FAQ
p.19: Torpedo Attack [clarification]: A Torpedo Attack follows the normal Attack procedure (i.e., if you are targeting a Warship, it will fire
first!) The Torpedo Attack dice/die roll is always unmodified when rolled. However, 2d6 dice rolls, if your Torpedo Attack was a 2d6 dice roll,
can be “saved” by Emergency Help (p.26)
I can't remember where this was asked and answered, but DRM's from treasure are never modified by Motive.