Me and my guild are having fun with the new 8v8 BG format, but after playing it for a bit, it has become apparent to me that there is a major design issue that I wanted to point out. The choice to only allow you to que a 4 man team into 8v8 makes absolutely no sense in the context of an objective-based PVP match. I can coordinate with my own team of 4, but that is not enough if/when the other team's entire team is coordinating and playing together and we are getting outmanned and bullied on the flags. It would be helpful to be able to tell the other players to go try to capture the other objectives since the other team is focusing all on one objective, but since it is not a pre-made team, they are not in party chat with you, and you have no time while you are fighting to type instructions to them.
I get that you want to break up the sweaty teams for 8 v 8, but you are also limiting the ability for you to coordinate with your own team, which can lead to frustrating experiences if/when your own teammates can't figure what they should be doing. I'm speaking from my team's perspective, but I'm going to guess that the other people we are grouped up with are probably thinking the same thing too sometimes.
I think that this design choice may make some sense where you are playing death matches and the only objective is to kill the other team. You could get some super sweaty teams of 8 working together that would be a huge problem. But in objectives-based matches, you need to try to be able to coordinate movement and strategy with your other teammates, and the design choice actually discourages you from doing that. You could, in theory, invite the other players into your xbox party so you can coordinate better, but that also doesn't make any sense when you can't stick together with those players from match to match.
My suggestion here would be to allow a team of 8 to go into 8v8 objective-based matches, but only limit it to 4 man teams when quing in for death matches.