Ok guys, I just finished this quest the other day, so Ill give you some detailed info. The quest begins with Emmissary Mitsya who is upstairs of the Seafarers Roost (Tavern/Inn) in East Freeport. Talking to her will give you your quest, and now your first objective is to take out an orc runner in the Commonlands.
If you have ever killed orc lumberjacks, the runners are usually right behind (south) of them. If not, just run southwest from the zone in from West Freeport, and stay on the east side of the map, you should find them. Easy solo to 18, not a problem at all, few second fight. Take the note you find back to Mitsya, and she will tell you that is talks about an alliance being formed between the Orcs and the Dervs. Next objective, find Dranok Bileblood.
This one took me forever, it says where to find him, but its pretty vague. Just go back to where you found the orc runner, and run west along the wall. You will come to several canyons, after you are on the west side of Commonlands, and the biggest one is the one you want. Walk into the canyon and take a left, walk a little bit more, and presto, there spawns Dranok. Talk to him and he will try to trick you, but being a crafty Predetor you talk your way out of it. He will send you and ONLY YOU into an instanced zone. This is the final part.
Once you zone in, talk to Dranok and he will tell you to kill Capt. Rotfist. Run right against the wall, you can swim thru the middle of the lake, but if you are 18 there are some fish in there that will aggro you and follow you up onto land, pretty annoying, and will make for more downtime. Run along the wall to the building on the left after the lake, you can see Rotfist on top. There are two orcs on the ground, on is a guard that patrols by, he takes a long walk, so no worries here, just watch him. The other was yellow to me at 18, but as he is a "Drowsy Guard" you can sneak past him unlike all the others, just put on sneak and hunt and you will be fine. Into the building you go, up the stairs, and sneak up behind Rotfist, a well placed Shadow Blade and good use of your HO's makes for an easy fight, white to lvl 18. Jump off the back of the building making sure that the patrolling guard isnt walking by, back the way you came, talk to Dranok and he will port you out. Back to Mitsya to receive your reward.