[Law of Retribution Ash farming Help]

Can someone hlep me please i need 7 people to help me do the law of retribution because I want to farm ash 

please help me 

[Archwing Bug Cant Start Any Other Mission]

I kind of starte the Archwing mission on Neptun from Darvo (I cant remember how i started the mission)

but i dont have an archwing and i cant start any other mission and it always says ARCHWING REQUIRED FOR THIS MISSION 

and there is no decline button in the ESC menu 

Please Help im stuck and I cant do any other mission