Bought the game last night and was able to play 2 games with no problems at all. The rest of the night I had lag so bad that the game was completely unplayable.
After about 5-10 seconds of playing normally, it will look like everyone else is running into walls. After 30 seconds to a few minutes of that, I'll either lag skip to a different location, show up dead with the respawn timer (that also freezes around 3 secs left), or I'll get melee'd by someone. The cycle just keeps repeating until the end of the match or I get completely disconnected from the server. I have 42Mbps down and 8Mbps up speeds with TWC in Ohio. All of my other games play completely fine (Destiny, Battlefield, MCC, etc) except for Halo 5. I really don't want to change my router settings because my NAT is Open and I have a great wireless connection. Single player is fine but online multiplayer is completely broken.