In a battle all you need to make you fight is a little hot blood and the knowledge that it's more dangerous to lose than to win.

“I think we might be heading into an ambush.”

“I see… but how? Does your character have points in the Ambush Detection skill? Does your class get a spell to detect hidden creatures? Is it that the deity of your chosen religion bestowed upon you a boon to reveal with holy sight those who mean you harm? Do you possess an ancient artefact from the tomb of a forgotten king, which glows with a spectral light when enemies are near?”

“Nah, I can just see the NPC’s name tag sticking out from the edge of that bush over there.”

Sometimes I think that the only real battle fought in an MMO is between the developer and the metagame.