Talk:Rhino (Warframe)/@comment-50.149.46.96-20140306041337

So far all the messages I've seen confirming Rhino Prime parts have been from exterminate missions. There is two unknown drops in T1E, one in T2E, and two in T3E.

Source:

https://forums.warframe.com/index.php?%2Ftopic%2F172911-prime-gear-drop-locations%2F