You can view this video here. 343industries - Official Halo 4 Pre-Release LIVE Stream from 343 Industries (Wed, 10/31, 11:30AM PDT)
I hope the Xbox Live play lists allow more freedom than previous Halo games, its always bugged me ive wanted to play Big Team Slayer, then in the big team playlist i can only play slayer if enough people vote for it. Ive been loving system linking the game on XBConnect, i just have a feeling i'm going to be dissapointed with Xbox Live games, especially as normal slayer looks to be limited to 4v4 from the live streams i have seen. 8v8 is where its at!!
Can you level up your character in system link games or is that only for online play? Also did you have any problems installing the disc 2 content? I hear people have been having problems.