Thanks for the plug there, Lambda.
Anyways if you want to give it a try:
W/Me
llu: 6
Str: 8+3+1
Axe: 10
Tac: 11+1
Cyclone Axe
Cleave (E)
Disrupting Chop
Healing Signet
Watch Yourself!
Dolyak Signet
Sympathetic Visage
Sprint
+15% Stance axe (req 10 or lower), Zealous of +5 Defence or 20% Enchanting (I personally use defence)
+60/-3 Hexed shield (collectors)
+45/-2 Stance shield (collectors)
There are a couple of groups I haven't managed to clear yet - the Ele group beside the tower, the big Ele/Mes group near the start and the dual Monk group behind that. Everything else around there is soloable.
As for where to aggro and how to use the build, it's kind of hard to explain. Just be familiar with the spawns, patrol paths, skillsets etc. of the Shadow Army. Take care to interrupt the important skills, use your skills wisely when SS is on you and predict when they'll cast which spells. Do all that and you'll be fine.
