How would you make at the most 5 teams? If i knew how to do this i would make a game with weapons and about 5 teams.
This can be done by clicking on Insert>Service>Teams and then you can insert teams with the basic objects window or by right clicking on 'Teams' in the explorer and inserting them from there.
Or there's a simpler way.
Just add spawn points(The ones with colors) then the "Teams" instance will pop up in "Explorer". All you have to do is change the name and or color.