Sweetie Drops raises an eyebrow as you request to join her elite unit not as a pony, but as a griffon. She seems skeptical that this form would be optimal, but acquiesces.
"I suppose we can't judge books by their covers. Let's see what you're made of, griffon or not."
She leads you to a chamber where a majestic griffon silhouette glows on the wall. As you enter, waves of energy pour over you, reshaping your body with tingling warmth. Feathers sprout across your skin where fur isn't erupting, claws lengthen from your fingers, and giant wings unfold from your back.
Emerging from the portal, your enhanced eyes adjust quickly to the dark bunker. Powerful talons clack on the concrete floor as you stride on lion-like hind legs. You ruffle your eagle head's brown feathers and flex your sharpened beak experimentally.
Sweetie circles you, inspecting your transformed physique with an appraising eye. "Well, you certainly look formidable. But we need more than might - show me agility and cunning befitting our covert protectors."
She is happy to follow after you, barking commands and taking you through your paces. Being a griffon is new... But not bad. Flying ranks pretty high on the desired list, and what's wrong with claws ready to tear a face off if the need arises?
Yeah, and griffons get paid, so there's that. Equestria might not be a bad place to be.
The end.