So, there's major problems with the game. 343i is supposedly releasing a large patch.
1. Matchmaking (literally) doesn't happen. I've had 2 or 3 total games. There's all kinds of player searching logic issues.
2. In matchmaking, players can determine who's hosting. How? When you tap the menu button, you have the OPTION TO REMOVE PLAYERS.
3. In H4's campaign, the complete game isn't there. There's levels missing.
4. Achievements unlock randomly.
5. In H3's forge, you can't change the gametype ... therefore, you can't create things like race tracks and Grifball
6. and much more!
The only real playable part of the game is H2 and H3 campaign.
BUT ...
Xbox One w. Halo, Walmart, Black Friday ... if you go to the store within a set window (1 hour), Walmart guarantees you'll get the price $320. If they run out of units that day, they'll send you one by Christmas.