Well we have been searching through the files and settings for NW and so far the squad size setting has eluded us.
Currently the rule is NO MORE THAN 3 PEOPLE in a squad WHEN YOU ENTER. Once inside if others join you can squad them then and not before. If you are found to have broken this rule then you will be removed from NW and may be banned for the duration of the remainder of the NW.
till I work out this damn squad thingy.