TBD.
The Valkyrie is what happens when you take the spirit of what the Triumph class is, and reimagine it with League sensibilities. She is a short range, small crew carrier that can serve as an escort vessel, a patrol craft, or even the backbone of a taskforce, when paired with several others. The pure destructive power of fielding three of these cannot be overstated; a squadron of fighters punches far above their weight class, and with three nimble ships with the defenses and manuverability to stay in the frey providing cover and rearming, such a squadron is far more lethal then when launched from a more traditional craft.
The Valkyrie class is a short range patrol craft, focusing on bringing a lot of firepower to a fight for it's relatively small size and cheapness. Valkaries often find themselves as a backbone of planetary defense forces, or border patrol duties. They almost never travel further than a few systems from their home base, though the limiting factor on their range is often crew supplies and not fuel.