Anybody running anything other than an Arc sniper is insane. If you don't know why, then you don't know the shields. A high impact arc sniper will One Shot headshot thru shields, some of the Major captains and Major knights will take a second feather of remaining life to kill. Fatebringer @ 365 Efrideet's Spear Arc damage, field scout, surplus @ 365 Gjallarhorn, or The Swarm Solar, or Against All Odds Arc