How do I play map packs like the Quake 2 25th Anniversary Edition with the Quake 2 Remaster Version

I have tried doing exactly what the instructions say but it is not working.

Knowing that I am a Quake 2 map and mod noob is probably not helping either.

I do not care if you have to talk to me like I am a child as I would just like to experience the fan made content.

Please assist and thank you.

Have you considered a source port, or are the pointless cheevos that important to you?

I have used source ports for games and appreciate them, but what is the 2nd part you are talking about?

^_^ That was my second thought but I figured why not try to have an all in one.