Help running at 1080p, 1440p, or 4k

[Big-Daddy-Dickum]

Just looking for a bit of help to get the game running in one of my native resolutions. I have a few screens connected so I don't care what resolution I get running. Just something a bit better than 1280x960. ESF 1.2.3 Steam or GOG. Everything is working. No other issues. Some high-resolution maps and texters would be cool. Not worrying about that its just a side note.

 

[hleV]

What resolution options do you get when you select Display Mode "Widescreen"?

 

[Skyrider]

@hleV He most likely is not using steam version but a way older pirated HL version that does not support such widescreen resolution options.