Locate the file "...\Black Mesa\bms\cfg\skill.cfg" on your hard disk where the game is installed.

Make a backup copy of this file in the same location.

Open the file in Notepad and edit the entries shown below to have the revised values shown:

gb_flashlight_Intensity "4.0"
gb_flashlight_Range "2000"

Save the file and run the game.

Try alternative values to suit your preferences.

You can increase the coverage of the flashlight by increasing "gb_flashlight_phi" within this file to a greater value. 120 gives you a huge coverage for instance.

Before and After Examples




Fun Stuff

Within the same file, make any of the changes below for some additional awesomeness. Use whatever bound keys you need, these are just illustrative.

Change flashlight colours in-game by binding as follows:

bind g "gb_flashlight_Col 245 240 225" // default
bind h "gb_flashlight_Col 100 100 240" // blue
bind j "gb_flashlight_Col 100 240 100" // green
bind k "gb_flashlight_Col 240 100 100" // red

Change flashlight intensity in-game by binding as follows:

bind u "gb_flashlight_Intensity 0.8" // low
bind i "gb_flashlight_Intensity 2" // med
bind o "gb_flashlight_Intensity 3" // high

Change flashlight cone size in-game by binding as follows:

bind n "gb_flashlight_phi 80" // narrow
bind m "gb_flashlight_phi 100" // wide

There are many other settings you can alter. Experiment and have fun!

Here's a video showcasing the suggested settings: YouTube

If you run into any unwanted issues, either change the values in the file back to their original amounts or delete the file and replace it with the backup that you made.