In this guide, you will find out how to get Animal Instinct in Warframe
Animal instinct can drop from nightmare missions as a C rotation reward. So the planets that you need to run nightmare missions are Uranus, Neptune, Pluto, Eris, and Sedna.
Now if you are running a rescue nightmare mission, then it won’t matter which planet you are running the mission on. But it matters what objectives you complete as you need to complete all three objectives to get C rotation rewards. Those objectives are saving the hostage, saving the hostage undetected, and killing all the wardens.
Although animal instinct doesn’t have the lowest drop rates, I wasn’t able to get it in my two runs, unfortunately, so it might take you a few runs before you get animal instinct.