How I can build multi player VR business equipment

I would like to build a room for a shooter for 4-10 people.
What equipment I need?

There are a couple ways you can go in this. Easiest way would be PCs and either Oculus Rifts or HTC Vives for each (or a mix). You can then do multiplayer games of many types. NOW if you want to be more elaborate then you would need custom equipment, backpack VR suits, tracking stations, MAJOR computer hardware. You might try consulting with Mindtrek a company that already does room scale VR...

https://www.mindtrekvr.com/