It seems that Ranger can handle up to GM2 right now. Not sure if there is an efficient way into GM3 yet. GM2 Ranger
Still needs a few more gear tweaks. Build is in the description.
Imo. Ranger is in a very good state. I have both a ranger and storm at masterwork over 700.
I would have to say ranger is my favorite to farm gm3s.
The sad part of ranger is that its very gear specific reliant inorder to be effective solo or in grp.
1. You need a ralners blaze and seigebreaker (mw guns) to prime your targets
2. You need a last argument nade with atleast 100% charge attribute.
3. You need the emergency power component.
4. You need the tip of the spear component (so combos heal the grp)
Ranger is basically an ulti spamming javelin in practice... if played correctly you can pull off 2-3 ultis every 2 mins.
Along with combos. That is a lot of dmg done!