She's not UED.
The Dominion built (or stole) Valkyries of their own; they used one in Firstborn.
She probably wouldn't have been listed as part of Gamma Squadron if she was UED, either. (The only way that could happen is if parts of Gamma Squadron were captured at the Dylarian Shipyards.) PsiSeveredHead 23:37, 5 November 2007 (UTC)
So we're going by the idea that Valkyries were originally developed in the Koprulu Sector?--Hawki 07:17, 6 November 2007 (UTC)
No, I don't think they were developed in the K-Sector (but who knows for sure). However, the Dominion had four years to steal the design. PsiSeveredHead 12:03, 6 November 2007 (UTC)
Still, there's no evidence of Gamma Squadron being inducted into the Dominion (at least not directly) and the general feeling of the profiles indicates that it's pre-StarCraft, with prologue snippets (eg. how the Terrans are turning to the Protoss for resources).--Hawki 13:07, 6 November 2007 (UTC)