William Joseph "B.J." Blazkowicz and the chamber of 5.56

Is this one of the wolfenstein games?

Yup

I would bet on https://en.wikipedia.org/wiki/Return_to_Castle_Wolfenstein but cannot be 100% sure

Terror Billy and the prisoner of Wolfenstein

That is the correct one. All I wanted to say since you weren't sure.

I concur. It's Return

Man how did I miss this one? Looks awesome. It's cheap on Steam as well

It's one of the best ones, get playing it. Lots of shooting up Nazis, zombies and death robots; a little bit of stealth, lots of Quake 3 bunny hopping, plenty of action.

Not like the new ones, which make you watch 45 minutes of torture porn before letting you do five minutes of corridor shooting, and which just can't commit to deciding whether killing Nazis is bad.

Is that the White House ???

This was the game that got me into PC gaming back in the early 2000's. SP you can play stealthy and go in stabby stabby or go in with gun blazing.

MP was cool too. Stealing documents and getting them back while doing things like setting tnt to blow a hole in a wall and calling in air raids. Very fast action and lots going on.

I played the hell out of Enemy Territory the first couple years after it went free to play. Looks like it's still playable on Steam. I'm going to install it, though I fear there may not be many active servers.

I never got on with ET so stopped playing not long after. I used to use GameSpy for seeking out servers. The welcome voice "Welcome to GameSpy" is still engrained in my memory.

Bruh.... making you shoot your dog in the first 5 minutes should have been a press x to skip

Currently on sale on GoG as well:

https://www.gog.com/en/game/return_to_castle_wolfenstein