Q2CTF says "hi"
I would argue that QW CTF was superior to Q2's implementation. Especially if you bring QW Expert CTF into the equation. But I agree that it was better than UT99. UT99 was fun and it had some awesome mods (Like infiltration), but it never had the fluidity that Quake games had.
Anyone heard about this Quake 2 rebuild?
https://github.com/kondrak/vkQuake2
or this which I think is unrelated
In general it seems like arena shooters as we knew them are no longer a thing. The genre is just about dead today.