Red Team had been given an assignment. It wasn't the usual sort of assignment. They were assigned to defend their base 'until further notice'...and then never received notice. All announcements sounded pre-recorded, and enemy assaults were few and far between. The enforced inactivity was slowly fraying the bonds of the team...

...until something unexpected arrived. A tiny creature appears one day in their fortress, in need of compassion and care. Somehow, she finds that in this group of strange individuals, as she becomes their baby.

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Crossover with Team Fortress 2.
Part of the PWNY-verse.

Edit: Since I get these comments a lot, I will say here, I've never played the game and don't intend to include much in the way of game mechanics, so please don't suggest such things.

Edit 2: FAN ART! for chapter 9 by G_Haze. Makes me so happy.
Edit 3: More fan art from G_Haze, This guy's amazing!
Edit 4: New fan art! by The Pyromanecer. Thanks so much!
Edit 5: More fan art by shiningkord98.
Edit 6: New Fan Art by The Pyromancer
Edit 6: More awesome fan art from G_Haze! So awesome!
Edit 7: New fan art by Pioneering Author

On a dark night filled with even darker magics, an insane cult attempts to give Nightmare Moon a body and life of her own, utterly separate from Princess Luna. But, when the spell is interrupted by Celestia, something unexpected is created.

Now, a little black alicorn filly named Nyx finds herself living under the care of Twilight Sparkle, only to be haunted by memories and emotions from her past. Is she Nightmare Moon reborn or is she simply a doppelganger with a soul and mind of her own? Can Twilight Sparkle protect Nyx from those who refuse to see past her dragon eyes and black coat?

Or, will Nyx be forced to inherit the sins that may not even be hers and become the greatest evil Equestria has ever known?