Halo Infinite multiplayer is out and it's free to play, the campaign is coming December 8.
There's CTF and the time to kill is pretty high. It has vehicles and jump pads around the maps, but overall the movement on foot is slow paced.
https://store.steampowered.com/app/1240 ... _Infinite/
https://www.xbox.com/en-US/games/halo-infinite