Looking for a story

Don’t remember where I read it, here, tgstorytime or fictionmania.
Locale space and/or other worlds
Elite pilot got Captured, tortured and turned into a woman by enemies.
Salvaged from cryo sleep at some point.
Took a indetity of his own “sister”
Continued service as a pilot.
The fighters they Fly follow shark or fish names (I remember that these elites used ”Manta” fighters)
Also, the MC beats everyone at simulators at some point.
At some point she starts to command her old pals that had no idea that this “sister” is actually their old friend.
Receives experimental fighter with three seats a for intelligence expert, specialist and the pilot ofc.
This intelligence officer betrays them at some point.
The story was incomplete.
Please help.