Ok, took a look see... & can't say... could be I totally missed them.
I do know that I recall running into some Brit subs in SH3... & I totally forgot to mention that dumpster fire 5... I know i recall running across a Brit sub, when making that run across to Danzig, before heading to Kiel, in the 1st mission you do... don't think it was in there in stock, however, I could be well mistaken & never saw it.
OK, outta fresh ideas... maybe some other could jump in here... with info on them & how to go about grafting them in... sorry ol' pal.... *sigh*
M. M.