The Bunker is an MLO. This resource use the fivem asset escrow system.
For interior, presentation video here, but bunker location is same as picture: Mlo Bunker with exclusive door opening script - YouTube
There is a door that opens and is fully configurable thanks to a script included in the package (can be attached to a job/job2/property from esx_property so owner can control bunker door, otherwise anybody can control this door).
After opening you will be able to see the descent into the bunker and a door that opens into a parking lot.
You can modify the texture of the door directly in the texture file “porte_garage.ytd”. Other rooms await you in the bunker.
Available on our tebex: https://glorious-rp.tebex.io/package/4578378
Same bunker at Sandy Shores: [RELEASE] [PAID] Bunker mapping with script