All of the packet captures from the final game at DEF CON are available for torrenting.
Friday: https://www.defcon.org/html/torrent/DEF%20CON%2021%20ctf%20friday.torrent
Saturday: https://www.defcon.org/html/torrent/DEF%20CON%2021%20ctf%20saturday.torrent
Sunday: https://www.defcon.org/html/torrent/DEF%20CON%2021%20ctf%20sunday.torrent
Have fun!