Orokin moon spy 3rd vault secret room?

[Aeronark]

So i have been farming Blood rush and i noticed the 3rd vault had a room in it, near the end which is full of loot containers! I just have no idea how to get there, plus i havent seen any guides online. Does anyone know how i could get in there?

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Thanks for any help with this!

[Marine027]

The portal you come trough, there is a expolding container nearby, this will trow the pillar trou the portal and open this door.

[lukinu_u]

You have to go on the "derelict dimention"' (dont know how to call it) and explode the red container behind you, stuck onto some roots.
After returning back on the "void dimention", a rock will fall and destroy the door.

[MystMan]

https://steamcommunity.com/sharedfiles/filedetails/?id=587545211