I see..
As said before, it's a machinima series made in Counter Strike: Source, but the story of it is that the Terrorists and Counter Terrorists are on a TV show in which they compete in various challenges, like taking out the other team, disarming a bomb, y'know, Counter Strike things
During a challenge, you can die and end up in a 'Death Room' that's just a long gray hallway that extends into darkness and has a TV you can use to spectate the match while you're dead, you'll come back to life once the challenge is over
The creators, Smooth Few Films has said that one of their main inspirations for the series was Rooster Teeth's 'Red vs. Blue' Halo series
And much like Red vs. Blue, Leet World's quality has improved as the show went on, it might start out a bit slow, but it's definitely worth watching
