Prime drops

[Pmueck3]

I'm trying to gather rhino prime parts and i know those drop in particuler tier missions , (exterminate etc.) but is there a site or link where i can see what missions are what tier ? and do these prime pieces drop from specific enemy's since i know nekros prime is from a relic

[(PSN)Elctrcstel]

1 minute ago, Pmueck3 said:

I'm trying to gather rhino prime parts and i know those drop in particuler tier missions , (exterminate etc.) but is there a site or link where i can see what missions are what tier ? and do these prime pieces drop from specific enemy's since i know nekros prime is from a relic

Rhino Prime is Vaulted. the only way you'll get him is buying his pc's off another player. 

Regular Rhino can be found on Fossa, Venus i believe