Talk:Mission/@comment-14367610-20130808160257/@comment-24.61.6.72-20130929140650

To follow up even more with that, if you kill an enemy with an ability you will only get warframe XP, but if an ally kills an enemy with an ability then you get warframe, primary, secondary, and melee XP.

This is why despite all the rage against Nova, she is actually an invaluable teammate when you are trying to XP grind.