The Imperial chapter of Delusions is on the same server as the main guild, The Harbinger, and it is called <Delusional>.
Delusional was founded on a PvP server (Davik's Estate). However, with Bioware's 1.1 reveal that the Legacy System, a central and critical game mechanic, essentially requires one's mains and opposite-faction alts to live on the same server, our Sith operations moved to Vornskr, our original Republic server. It was sad to leave characters behind on Davik's Estate, but (voluntary) server transfers did not exist at the time. 1.3's server merges, however, allowed us to bring everyone to a single server on The Harbinger.