Warframe allows its players to farm out any of the game's dozens of different Frames for free, and some of them have entire game modes dedicated to the task. Nidus, for example, is received by playing Infested Salvage Missions over and over again.
Warframe Infested Salvage missions task the players with finding ship manifest logs on vessels that have already been overrun by Technocyte. This is accomplished by protecting special consoles from Infested attacks, but further complications abound...
How to Play Infested Salvage Missions in Warframe?</h2>
There are two special Infested Salvage mission locations: one is a large, mostly flat room that's relatively easy to lock down, depending on your skillset; the other is a large hall that's been completely overgrown, with Technocyte tendrils actively preventing you from quickly accessing consoles one after another. It's clear which you should look for, though the selection is entirely random.
There are three consoles available in Infested Salvage, and you need to kill enemies for them to drop Antiserum Charges nearby, which you then collect to keep said consoles chipping away at the ship manifest. You do so by depositing Antiserum Charges into nearby Vaporizer units which, in turn, project a protective bubble around each console in order to keep Technocyte from forming over them.
Since bubbles expire at a steady pace, you're going to want to have a constant supply of Antiserum, which means killing lots of enemies. As an aside, you're going to want to stick inside Vaporizer bubbles, too because the air grows toxic as the Infestation cracks down on your consoles.
For each full manifest decryption that you manage, you gain a reward and a chance to extract or keep playing further, with the rotation sets at A-A-B-C, which means C-rotation rewards will only appear every fourth decryption.
Recommended Warframes include a Speed Nova, an Ember, and a Vortex/Bastille Vauban, with the fourth slot up to personal preferences for the most part. Happy hunting!