Kiel: Direct Support
Stop everything you have done thus far, get a ticket and support Evon.
Guild Wars 2 is not a sequel to the original Guild Wars but merely an alternative story setting.
You need to do tier 2 again. If you do tier 2 before 1, it counts tier 2 as 1.
So just do tier 2 again.
Same thing with tiers 3 and 4 btw, if you do tier 4 before 3, you have to do tier 4 again to get the achievement.