I guess that's something
http://www.gamersyde.com/stream_assassin_s_creed_iv_black_flag_multiplayer_gameplay_e3-30237_en.html
The multiplayer of Assassin's Creed IV: Black Flag was playable on the showfloor. Thus we captured some gameplay videos. Note that the game was running on PS4 in 1080p and 60 frames per second.
http://www.gamersyde.com/stream_assassin_s_creed_iv_black_flag_multiplayer_gameplay_e3-30237_en.html