Red Expert Mod

[Dr.Chupacabra]

Hello i today search for good graphic mod and i find one old mod named Red Expert 2 but i know is old and not work on new version of game but i have one other question i see author put in descriptions one command line

uset g_texture_hd_enabled "1"

I not see this in config.cfg but author say we must add in config.cfg does anyone know anything about this command line does it possible use this command line in newest version and what this line do?