It's in episode 53, right after the ending song and the preview for the next episode.
it was a flashback from an episode.
because ANBU is the powerful group team in NARUTO.
take charge in a group of individuals
no one, there isn't a team 11 that we know of in Naruto's generation of shinobi.
Currently Naruto is part of team Kakashi so nope he doesn't have his own team yet.
Team 7
If you watch the trailer it seems as though Naruto and Sasuke team up to defeat a new enemy trying to take over Konoha
naruto sakura and sai
if its naruto arena, then Team 7
a good team for this mission would be neji sakura and naruto
i would say zaku temari and naruto shippuden try that team there awesome
team 7- naruto, sasuke, sakura or... sasuke, dosu and tayuya this is what i think