If you have Steam Q2 mission packs, it will be much easier in terms of downloading and installing. Copy all data files to Q2RTX folder.

The Quake 2 Neural Upscale … As such, and for all our non-RTX readers, there is a new AI-enhanced HD Texture Pack for Quake 2 that you can download and install right now. Global lighting effects, including realistic reflections, refraction, shadows, ambient occlusion and global illumination are a result of the path-traced simulation of light. 1. Quake II RTX is a cutting-edge, ray-traced reimagining of id software’s old school classic, by NVIDIA’s Lightspeed Studios. 3. Install Q2 mission packs 2. Quake 2 XP also comes with other nice things like blood and explosion decals, bullet casing / shell casing ejection animations. Hi, I'd like to briefly explain how to enable mission packs for the Q2RTX.

If you don't own a copy, go buy one. The textures and some of the weapon models in Q2RTX were actually imported from Quake 2 XP (credit is given to Quake 2 XP by the Q2RTX dev team).