In order to play on Linux I had to do some manual things.

- Navigate to workshop mod directory
- Copy `bmmilitary` mod into the `game/Black Mesa/` directory
- Navigate into `game/Black Mesa/bmmilitary` directory
- Extract all `*.vpk` files
- In Steam, change Black Mesa launch parameters to: `-game bmmilitary -oldgameui`

I used https://github.com/ValvePython/vpk to extract the `*.vpk` files. Extracting was required to get the dialog audio to work.

Happy playing!