This guide will tell you where to farm for Gemini Cross and Bleeding Willow in Warframe.
Gemini Cross and Bleeding Willow can drop from corrupted Moa’s, spawning on certain missions in the void planet/tileset.
The missions you have to run in the void are either of the two survival or defense missions.
When you run these missions, it took the Moa’s a little bit of time before they started spawning. You will need to stay in the missions for some time before Moa starts to spawn. Also, the mods have pretty low drop rates, so it’s going to take you a lot of kills and time before you get either of the mods unless your lucky.