Gonna be hard tbh. Donāt think thereās any guilds openly labelled as such, or have been in a long a** time. That being said⦠Thereās always peeps around that also engage in PvP on the side, just gotta find em.
Being on a rp realm the best approach is probably to find a rp guild that suits your char concept, and then (as you get to know your fellow role-players) to find those badass gamers that also push PvP for content. We do exist! (I play Alliance though, so I canāt rly speak for the stinky boys in redā¦)
Early in DF, I tried forming a RP-WPvP guild, that does Arenas, BGās and WPvP under the guise of ārelic recoveryā in RP (from the bloodied corpses of our enemies, much easier than trying to unearthen them ourselves).
Alas, I lacked the time to properly bring that vision to life.
Think Iāll ping you ingame. Guild or no guild, shared interest in RP and PvP is always nice.