If someone would give me a good build or advice, i would be very grateful 
Thank you.
Rt for this mission
Tundra
Wich would be the best build for this mission - Nahpui Quarter? I kinda want to gel Legendary survivor with my Rt, but i fear from this mission, this is hardest mission in all Factions campaing. If someone would give me a good build or advice, i would be very grateful
Thank you.
If someone would give me a good build or advice, i would be very grateful Thank you.
Painbringer
Do you have prophecies? I think if you finish this mission and ascend you will miss the 50k bonus experience you can get from Prophecies for defeating the doppelganger. Someone correct me if I am wrong. Also if you have nightfall and can get someone to help you get there you can get Heroes. Basic way to get the mission done safe is to kill all the birdmen and skip/run from all the bosses. Then after you clear a path on the return trip back to starting point kill all the bosses and mini boss spawns. It is much easier to kill in this order Kirin boss first, turtle, dragon, finally the Mesmer bird thingy.
Pakikid
Painbringer I think you are correct when it comes to the assumption about the doppleganger. Yes I too have read on guildwiki that if you beat Nahpui Quarter and get ascended then you will not be able to obtain the 50k bonus experience from the doppleganger in prophecies.
Tundra
Isnt that hard to get to that doppleganger? 
Wrath Of Dragons
no, its really not. Prophecies missions are long, but with a MM and a decent monk, the desert is easy
ReVel4tion
plus you can always get someone to run u, assuming it's not your first play through
Painbringer
The run to sanctum clay is pretty easy but time consuming. It is easier with Heroes or human party (henchmen are a little harder because of the low level). Start by running to Temple of Ages then straight to Sanctum Clay. It may be better to just pay a runner if you do not have heroes or a human crew to help you out. There are a few large clusters of Skales in a couple areas. Finish the Sanctum Clay mission then do the three desert missions and you have made it. Read up on threads on how to kill the Doppelganger. I personally practiced the build was going to use with another character before taking him on with my survivor character. If you are loaded with money you may want to pay a runner at the desert as well. You could also Hench or fight everything it is just faster to pay a runner.