Talk:Affinity/@comment-178.203.233.84-20161004094552/@comment-27279105-20161004100005

If you kill an enemy yourself with an ability -> 100% to your warframe

If you kill an enemy yourself with a weapon -> 50% to your warframe, 50% to your killing weapon

If you are within affinity range of an an ally and he kills an enemy (afaik doesn't matter if with his weapon or abilities) -> you get the same affinity as he does, but spread over your whole equipment (25% warframe, 25% primary, 25% secondary, 25% melee i guess? no exact numbers mentioned here).