What did I do?

After changing posts with Nine, Five headed to the maintenance area to start her shift as the Doctor's bodyguard.

On his orders she had spent the previous day guarding the female soldiers making sure no harm befall them. The Doctor had explained to her that some of the male soldiers might try to force females to have sex with them, which was one of the most despicable crimes a human can commit. He also gave her permission to use any amount of force to arrest the offenders and made it clear in front of the whole base that she has the authority to make an execution based on her own judgment.

It was a rather difficult task as she had to keep track of every soldier on the base, however thanks to her presence and Nine's no one dared to attempt the crime and the female soldiers were able to spend their days peacefully with the only thing they have to worry about being the end of the world.