Teams works by assigning User tags so that you can determine which user belongs to which team, which in turns allows them to view records assigned to those groups. This is all controlled from the Admin panel.
Team members will only be able to view records owned by users within their team as ownership of records is what determines which records are visible to the team.
The first step is to create the Team User Tags by going to the Tag Manager on the Tags tab in the Admin panel.
Create your Team Tier 2 User tags.
Assign the Teams to the user profiles by clicking on the User tab in Admin, selecting your profile and then assigning the User tags and saving the profile changes
Once the tags have been assigned, refresh Chameleon-i and you can then go into the grids and run searches based on this grouping.