Unreal Tom Clancy's Splinter Cell
Grade: D-
I held a contest on GOG to see if anyone could figure out a way to disable the hud in Splinter Cell. drennan created the following mod, which I've uploaded to my OneDrive:
https://1drv.ms/u/s!Ap6Jmb-Bc4w0dO0lQCHPCKNtBVU?e=507TMR
The file is named: Splinter_Cell-HUD-Free-Mod-1.0.zip
Instructions are included in the zip file, but here they are again summarized:
Save game files created while using this mod are INCOMPATIBLE with
the original game. Use a separate Splinter Cell profile for the mod.
Installation
============
Copy HUDFree.u and HUDFree.int into the System subfolder of your Splinter Cell
folder.
In the same folder, edit SplinterCell.ini, find the DefaultGame entry in the
[Engine.Engine] section and set its value to HUDFree.EchelonHUDFreeGameInfo:
DefaultGame=HUDFree.EchelonHUDFreeGameInfo
Next, edit SplinterCellUser.ini and bind the ToggleHUD command to a key in the
[Engine.Input] section. The example below uses the Tab key:
Tab=ToggleHUD
This mod disables most of the hud while still keeping certain elements, so you can still select weapons and tools and activate items without a constant hud on screen.

Spinter Cell - no hud