After getting online with the PS3 I have been playing Call of Duty 4 a lot! It seems to me that there are loads of people out there with Clan Tags. I take it that they belong to a group of people that play and fight together in the team battles. After doing an ARRSE search I came across the ARRSE clan but that didn't really shed any light. My question (general wondering) is this: Does it really matter that you are part of a clan? Apart from having loads of friends to invite to games (which can be done through friend invite anyway) does it really make a difference to the game play, experience level, etc ?