How to: Edit difficulty setting values

[geo686]

Use Winzip (or Winrar) to open the gamelogic.PAK file.
You will see folders listed. While working inside the PAK file:
1. Open the Set\difficulty folder.
2. Open the hard.dl file in notepad.
3. Edit the values for "enemy" as you desire.
I went with {health 0.75}
{burst 0.75}
{accuracy 0.70}
{firing_timeout 0.9}
{grenade_timeout 1.5}

making it harder than normal but easier than the default "hard".

Click file-save. When Winzip asks you if you want to update the file with the new information tell it YES/OK.

I found the edited hard setting more challenging than normal but not near impossible/frustrating.