I found the error.
I changed
[Chin-Station]
SystemType=WEAPON_STATION
StationID=26
StationGroupID=6
StationType=EXTERNAL
AttachmentPosition=0.0,2.25,0.000
AttachmentAngles=0.0,0.0,0.0
LoadLimit=1000.0
AllowedWeaponClass=LP,EP,DLP
AttachmentType=NATO,USAF
SpecificStationCode=ChinL <-----------
ModelNodeName=
PylonMass=0
PylonDragArea=0.002
LaunchRailNodeName=
LaunchRailHeight=0.10
TO
[Chin-Station]
SystemType=WEAPON_STATION
StationID=26
StationGroupID=6
StationType=EXTERNAL
AttachmentPosition=0.0,2.25,0.000
AttachmentAngles=0.0,0.0,0.0
LoadLimit=1000.0
AllowedWeaponClass=LP,EP,DLP
AttachmentType=NATO,USAF
ModelNodeName=
PylonMass=0
PylonDragArea=0.002
LaunchRailNodeName=
LaunchRailHeight=0.10
Thanks, I wouldn't have went through data.ini again.