Leveling

This page explains how to level up your stuff.

In Warframe exp is called Affinity. Every rank requires more affinity than the previous rank. Weapons and Warframes go up to rank 30. Kuva/Tenet weapons, The Paracesis and Necramechs can increase their rank up to 40 through Forma. Every Forma gives 2 extra ranks.

Mastery rank is your level. Warframes give 6000 MR points and weapons 3000. The ones that fo up to rank 40 give 4000.

Different factions can give different amounts of affinity. Greneed > Corpus > Infested (Greneer most and Infested least)

Helene-Saturn

If you don’t have Elite-/Sanctuary Onslaught, this is the best mission. It is a greneer defense, the map is not very big, and lots of enemies can spawn.

Elite-/Sanctuary Onslaught

Onslaught has higher enemy levels and more enemies. Elite Sanctuary Onslaught can only be entered with a maxed Warframe.