PC What's the most FPS intense game you have played?

There are so many FPS games today, of all kind and shape...

What would be your favorite FPS game you have ever played?

In my case, it is Garry's Mod, but that's just me...

I loved "The Syndicate" back in the day, it was really intense and fast paced, those graphics were truly amazing back in the day, even my beefy PC had some freezes.

For me, it was the very first game in F.E.A.R. franchise. Not that it was scary but for me at that time it was something different than anything I have seen before.

Depends honestly -- Lately I've been getting some intense battles in Battlefield V despite what people are saying.