UGC has updated the previously released player packet. Added to the packet is more detailed stream times (can be viewed here), hotel information and maps/variants (see below).

CTF Slayer Oddball KOTH
Heretic Amplified Guardian Construct
Narrows Construct
Onslaught Heretic
The Pit The Pit

Also released is the official ruleset. The tournament will double-elimination with best-of-five sets until the grand finals, which will be a best-of-seven and will follow MLG v8 settings.

You can view the entire player packet here and rules, including map rotation, at this link.