[HMCS]

There are MANY threads on this subject. Try the search function. But I will toss you a freebie.

In Vista, go to: user/documents/sh4/data/cfg/Savegames

All your saved games are there. Find the folder with your current sub & open "ActivePlayerUnits.upc"

the very Top will look like this

[UserPlayerUnit 1]
ID=Gato
NameDisplayable=Gato Class Submarine
UnitName=USS Gato (SS-212) <--- Edit here
UpgradeClass=2
Type=Gato
UnitInterval=1941-12-31 00:00:00, 1967-06-01 00:00:00
ExternalClassName=SSGato
Nationality=American
Evolution=Normal
Damage=0.000000
TextureName=data/Submarine/NSS_Gato/NSS_Gato_T01.tga
LightmapTextureName=data/Submarine/NSS_Gato/NSS_Gato_O01.tga
NormalmapTextureName=NULL
MenuSilhouetteTextureName=Gato_Class_01.tga
MaxOfficers=14
MaxPettyOfficers=52
StartUserPlayerUnitMissionDateTime=1941-12-06 10:00:00
CurrentUserPlayerUnitMissionDateTime=1941-12-06 10:00:00
SilentState=false
__________________

You also need to change the entry in the CareerTrack.upc file here-->>(at the end of the file)

[CareerTrack 1.CareerStatusSave 60]
ID=ID
Reason=CSS_OfferNewCommand
NameDisplayable=
CurrentDate=1943-06-11 13:59:16
OfferedUserPlayerUnitIDLink=Gato

[CareerTrack 1.CareerStatusSave 61]
ID=ID
Reason=CSS_NewCommand
NameDisplayable=USS Bowfin (SS-287) <----EDIT HERE
CurrentDate=1943-06-11 13:59:16
UserPlayerInstanceDisplayableName=USS Bowfin (SS-287) <----EDIT HERE
UserPlayerUnitIDLink=Balao

You find this entry at the end of the file itself; be sure to save right after you are assigned a new sub. If you remember to alter this line, all your subsequent medal citations will read your new sub's name.