Talk:Mastery Rank/@comment-190.43.105.116-20150202032233/@comment-78.160.229.147-20150204084429

That is mission XP that goes towards leveling your weapons/warframe/sentinel etc. For each level your gear increases, you get a small of Mastery Points - it is these that add to your mastery rank, not mission XP. Hope that helps!

hahahahaha i thought you were one of those auto answer support - bot did you even read what he was saying?