The Frontlines Premade issue has not been fixed.

[NessaWyvern]

When my PvP friends were playing, we'd group up in a group of 8 and just have fun with the match. We lost a lot, but that's because we were doing stuff like going all nin in stealth (back in HW), and use all of our LB on one person at the same time for laughs to surprise players on the other team.
Far from meta strats. We wouldn't be able to do it now though, as they removed 24 man, and cut it down to 4 people per party queue. Our messing around for fun would just bring others down now..