Talk:Mastery Rank/@comment-50.65.91.62-20130619090857/@comment-90.230.155.70-20130620010139

Kill with the weapons and not the warframe itself. I.E abilities such as Slash Dash, Fire Blast, Rhino Charge etc...

And for every kill your companions get, the exp is split to 1/4 exp to warframe, primary wep, secondary wep and melee wep