[Bacardi]

In CSGO game, simple way you can disable nav place names from every level (from server):
- Make backup copy of file ...csgo/navplace.db
- Edit navplace.db with text editor, add //double slash begin of each line

...csgo/navplace.db

//BombsiteA
//BombsiteB
//BombsiteC
//HostageRescueZone
//VipRescueZone
//CTSpawn
//TSpawn
//Bridge
//Middle
//House
//Apartment
//Apartments
//Market
//Sewers
//Tunnel
//Ducts
//Village
//Roof
//Upstairs
//Downstairs
//Basement
//Crawlspace
//Kitchen
//Inside
//Outside
//Tower
//WineCellar
//Garage
//Courtyard
//Water
//FrontDoor
//BackDoor
//SideDoor
//BackWay
//FrontYard
//BackYard
//SideYard
//Lobby
//Vault
//Elevator
//DoubleDoors
//SecurityDoors
//LongHall
//SideHall
//FrontHall
//BackHall
//MainHall
//FarSide
//Windows
//Window
//Attic
//StorageRoom
//ProjectorRoom
//MeetingRoom
//ConferenceRoom
//ComputerRoom
//BigOffice
//LittleOffice
//Dumpster
//Airplane
//Underground
//Bunker
//Mines
//Front
//Back
//Rear
//Side
//Ramp
//Underpass
//Overpass
//Stairs
//Ladder
//Gate
//GateHouse
//LoadingDock
//GuardHouse
//Entrance
//VendingMachines
//Loft
//Balcony
//Alley
//BackAlley
//SideAlley
//FrontRoom
//BackRoom
//SideRoom
//Crates
//Truck
//Bedroom
//FamilyRoom
//Bathroom
//LivingRoom
//Den
//Office
//Atrium
//Entryway
//Foyer
//Stairwell
//Deck
//Porch
//Patio
//Wall
//BoatBar
//BoatStorage
//CTBar
//UpperCatwalks
//LowerCatwalks
//GroundLevel
//LockerRoom
//BackEntrance
//FrontEntrance
//SnipersNest
//BodyShop
//BankInterior
//BombSite
//BankExterior
//Street
//GasStation
//SideEntrance
//PalaceInterior
//BackAlleys
//CTSideUpper
//CTSideLower
//TSideUpper
//TSideLower
//UpperCarousel
//MidCarousel
//LowerCarousel
//CTCorridorDown
//CTCorridorUp
//TCorridorDown
//TCorridorUp
//LeftAlley
//RightAlley
//BackCourtyard
//FrontCourtyard
////DUST2
//MidArch
//OutsideLong
//LongDoors
//AbovePit
//Pit
//APlatform
//LongA
//ARamp
//BackofA
//Bricks
//ShortStairs
//Short
//Catwalk
//Mid
//TopofMid
//MidDoors
//ExtendedA
//BDoors
//Hole
//BPlatform
//BackofB
//UpperTunnel
//TunnelStairs
//LowerTunnel
//OutsideTunnel
//TRamp
//UnderA
////NUKE
//HutRoof
//Secret
//Crane
//Vents
//Toxic
//Decon
//Observation
//Admin
//Mini
//Control
//Garage
//Heaven
//Hell
//Vending
//Silo
//SniperBox
//Radio
//Hut
//Crows
//Squeaky
//Yellow
//Main
//CTRed
//Red
//Warehouse
//BackStairs
//Rafters
//Forklift
//Trophy
////Inferno
//Garden
//Ruins
//Banana
//Logs
//TStairs
//SecondMid
//Hay
//Quad
//Arch
//Library
//Graveyard
//LowerMid
////Vertigo
//Floor50
//Floor51
//LadderBottom
//LadderTop
////Militia
//River
//Shed
//Barn
////Mirage
//Cart
//PalaceAlley
//PalaceTunnel
//Shop
//Scaffolding
//Connector
//TicketBooth
//Jungle
////Overpass
//LowerPark
//UpperPark
//Fountain
//Playground
//Restroom
//Construction
//Canal
//Tunnels
//Pipe
//Walkway
////Insertion
//Rafts
//MotorBoats
//SeaRock
//BoatHouse
//SeaCliff
//Beach
//YellowHouse
//RedHouse
//Villa1stFloor
//Villa2ndFloor
//DirtRoad
//Road
//BackRoad
//SmallForest
//BigForest
//EastForest
//WestForest
//Glade
//DeadTrees
//BarnRoof
//PowerLines
//Helicopter
//Helicopters
//SidePath
//Field
//InsertionA
//InsertionB
//InsertionC
//InsertionD
//DriveWay
////Train
//Ivy
//PopDog
//TMain
//Tunnel1
//Tunnel2
//ElectricalBox
////Cementplant
//Forest
//Gravelpit
//Tents
//Dock

You get errors in console however, but ignore those.

Warning: NavMesh place BombsiteB is undefined?
Warning: NavMesh place Catwalk is undefined?
Warning: NavMesh place TopofMid is undefined?
Warning: NavMesh place ExtendedA is undefined?
Warning: NavMesh place TRamp is undefined?
Warning: NavMesh place BombsiteA is undefined?
Warning: NavMesh place TunnelStairs is undefined?
Warning: NavMesh place TSpawn is undefined?
Warning: NavMesh place OutsideTunnel is undefined?
Warning: NavMesh place UnderA is undefined?
Warning: NavMesh place Short is undefined?
Warning: NavMesh place UpperTunnel is undefined?
Warning: NavMesh place CTSpawn is undefined?
Warning: NavMesh place LongA is undefined?
Warning: NavMesh place LongDoors is undefined?
Warning: NavMesh place OutsideLong is undefined?
Warning: NavMesh place LowerTunnel is undefined?
Warning: NavMesh place Hole is undefined?
Warning: NavMesh place ShortStairs is undefined?
Warning: NavMesh place Side is undefined?
Warning: NavMesh place MidDoors is undefined?
Warning: NavMesh place BDoors is undefined?
Warning: NavMesh place Ramp is undefined?
Warning: NavMesh place ARamp is undefined?
Warning: NavMesh place Pit is undefined?
Warning: NavMesh place Middle is undefined?

But, when you update your server, file get properly fixed back to original again.


Another way is using plugin, to block game call "LoadPlaceDatabase();"
- Need find signature and use DHooks.
*edit
I found these

CSGO void CNavMesh::LoadPlaceDatabase( void )
Windows - Signature for sub_105FA0F0:
55 8B EC 83 E4 F8 81 EC CC 00 00 00 83 64 24 34 FC 
\x55\x8B\xEC\x83\xE4\xF8\x81\xEC\xCC\x00\x00\x00\x83\x64\x24\x34\xFC

Linux - Signature for sub_914660:
55 89 E5 57 56 8D 75 98 
\x55\x89\xE5\x57\x56\x8D\x75\x98