I'd suggest only using 1 of SS or Vault, I personally use vault with rune that reduces cost if used again straight away. Alot of others use SS.
Marked For Death is commonly used. I vary between Mortal Enemy(more hatred regen) or if I am feeling lazy contagion(spreads it automatically).
Preperation with Invigoration rune - Permanently gives you 15 more disc = amazing synergy with the set bonus. This one is pretty much a must have.
Gems: Most common probably Zeis, Iceblink, Bane of the Trapped
Passives: Cull of the Weak(synergises with bott gem, proc'd by follower and evasire fire/iceblink gem), Ballistics(if fire, arsenal rune on multishot), Awareness(maybe ambush if doing lower level grifts/t6 and not dying alot), Steady Aim(synergises with zeis gem, keep yourself distanced from enemies)
Anarchs, Winged Assassins, Those little green bug things, 2x yellow lightning packs in 2 levels of a 50. Fuck this.