pad lock on your squad??

Last time playing conquest I noticed a lock on a squad. When you want to change squad you get the list of available squads. There i've seen a lock on a squad. I could not enter this squad. Does anyone know how can you get a lock on your squad???

And can you still add friends to your squad then. This could be handy if you know that members come online later. So you can add them to your squad.

Ya we do this alot, you need to have at least 2 members in your squad then the squad leader needs to go into the squad menu and right above the VOIP you can set the squad to private.

And you can still add/invite friends/members to your squad???

yea you have to invite them in though, If you can't ( say they are on your team but not squad) you can drop private lock for a second let them in. If some one else manages to sneak in and you forgot, as squad leader just kick them, go into the squad screen and click x on the person you want to remove and throw private block back on