We killed Revan yesterday with jugger tank, sorc dps, merc dps, sorc healer. Decent gear is also required tho. With T1 helm rest of the set T2 and Rakata Bracers/Belt, Rakata Stim, Adrena and good timing on endure pain + invincible i could take 2 hits. But yes its impossible without a assassin if the Juggernaut dosent reach 27k hp with his cooldowns

Be happy you are not on Legions of Lettow. Just woke up at 12.00 and 1200 in queue. 1-2 hours of waiting Zzzzzzzzzzz