It's unknown if s/he was in a previous squad. It is know Six was a "hyper lethal vector... responsible for militia groups disappearing"... Six's military record is kept "highly confidential", with little information shown (the few things that are certain is that Six is 6foot 9inches tall, which is around 205-206cm, and his weight. Six is also one of only two Spartans to be given "Hyper Lethal Vector" combat proficiency (the other being John-117, the Master Chief) These are the only things known about Six.
Summary
It is unknown if Six was in a squad before Noble, the main idea of Six is that he/she is you... You (as in the player) are Six, so you can create your own ideas about his past.
Squad means a group of players from which a team is choosen.So, a team consists of selected players choosen from the squad.
There is not a noble on halo there is a noble team. Noble 6 is the main guy in the noble team. Carter (NOBLE 1) is the commando.
The complete squad listing can be found on the team website, at http://www.liverpoolfc.tv/team/squad/
In the Halo Reach Noble Team, there are six members.
The football team with the largest squad is either Real Madrid or Manchester United.
Fire team, squad, platoon, or A-team
Noble Team is a team of six SPARTAN supersoilders in Halo: Reach. The team is compromised of five Spartan-III's (Carter, Kat, Jun, Emile and Noble Six) and a Spartan-II (Jorge)
When you are starting a cheer squad, you want to start with what the name of the squad will be. Then you need to figure out what colors the team will be. Then you need to get all of the people together that you want on the squad and think up of someone that knows a good insurance company so you can get insurance. Then you make up a routine and words to different routines. Then you can go on from there.
Every cheerleader has a cheerleading squad. Cheerleading is near incomplete if you don't have a squad because just like any other sport you need your team (a squad is a team). Without a squad you are unable to do any stunting. Stunting is important in cheerleading as well.
There are normally 25 people in a standard squad with 15 in a team in union and 13 in a team in league
Noble 6 of the Noble team.
A fireteam is a military team composed of four or less members. The four members are Squad leader, Support gunner or supressor, rifleman, and grenadier. A fire team is a unit in a Squad. A Squad's leader is called the "NCO".