In my current campaign (still in feb '40) it is Illustrious class HMS Indomitable
Indomitable was marching through AN48 at night in a biiig battlegroup bound for german bight at 20kts, my U-15 was in almost perfect position, at night under water 2000m from the center line of Indomitable's projected course, shot 3 T1 and went deep.
I heard 2 detonations, no idea what happend to the 3rd. The escorts went berserk but could never get a fix on me...

When I rose to PD after 3 hours I came just in time for the last act of the drama
I guess, I ruined their day... and saved the german coast of course!
To be more proud: manual targeting
__________________
SH3 battle capability upgrades: GWX2.0, JSGME2.0, SH3Commander 2.7, SH3Gen 0.8.2, TorpDamageMod 2.0, OLC GUI 1.1.5
Awaiting combat readiness for GWX2.0: SH4 effetcs for SH3, SH3Weather 1.5
Following development of:
www.subwolves.com
Realism: 90%