Warhammer Online: Age of Reckoning

Certainly, playing against other humans can be frustrating. They don’t just stand there, and they don’t run away at predictable low-health triggers. They jump around like idiots while you’re trying to smite them, and they come back with higher-level friends when you kill them. For most MMOs, this is something to be feared and shunned. LOTRO, for instance, is primarily you against the computer, with Monster Mode offered to placate the PvP nuts. For Mythic, however, it’s PvE players who are nuts - why play identical, instanced dungeons when you can have the infinite variety of huge, human-populated wars? Perkins namechecks Counter-Strike more than once.