Since a lot of people are fussing about no radar, here's a tip: There's no burn, so use a solar class when you go down to kill the Dorkblade. Set up so that you get afterburns on nades and melee. Gunslingers: incendiary grenades, incendiary blade, and gambler's dagger (for extra knives). Sunsingers: viking funeral and touch of flame. Sunbreakers: incendiary grenade again, and melting point. The Dorkblade will be lit up like a 15 foot tall torch in a very dark place. And with three players doing it, he should be more or less continuously illuminated. Also, you can always turn your brightness up.