This guide will let you know how to get the Void Hole in Warframe. You have to follow all the instructions carefully to do so.
Void Hole can drop as a reward for completing specific objectives in rail jack missions. The specific rail jack missions you’re going to run are the corpus rail jack missions in the Veil Proxima.
Once you get into the mission, you will see your main objective. Once you get close enough, you will get a pair of objectives that you need to complete before moving on to the main one. The objective that can drop a void hole will be the priority target objective, but you’ll have to do that objective regardless, so you’re more or less just going to be running rail jack missions in this sector to try and get the mod to drop.
Out of the items in the reward pool, the mod you’re looking for doesn’t have the lowest drop rates, so the drop rates or the mod shouldn’t be too ridiculous as long as you don’t get too unlucky when farming for it.
The mod can also drop from grineer fighter ships but at a very low chance/drop rate.