how do you get Sniper support?

i have checked both wiki and i just dont get it,There are no people out side longeyes only captin langmar and Vael,done all of there quests,i have finished GWEN, and got the sin hero but there is no corpse,there is no Sergeant Weststar wtf is going on its rlly pissing me off stupid RED ENGINE GORED ENGINE GORED ENGINE GORED ENGINE GOing game

Then it's possible the corpse with the quest is already there. Have you checked? It's just north of the portal to sacnoth valley in dalada uplands.

went there twice no corpse so i joined a team who were new to the area herd the convo again did aganst the charr again went to the corpse spawn point he was there dont know why,dont know how but he was there

"You must first listen to the conversation that Sergeant Weststar is having with his troops just outside the Southeast exit from Longeye's Ledge".

These are the 3 locations of Weststar, per wiki:

http://wiki.guildwars.com/wiki/Sergeant_Weststar

Yes, make sure you have listened to the *full* convo, also, you say you've completed the ebon vanguard quest line so it can't be that.

Also, the link El Presidente should help you along with this: http://wiki.guildwars.com/wiki/Falling_Out

You probably know all that info anyway but it's there for yah.