Right now for Frontline Roulette you need to be solo queued. I can understand why I guess. It might be so the whole Data Center gets help with matches rather than a group of friends queuing up as a party. But with a 4 limit as the amount of players that can party up for it, I think it would also satisfy this.

It's awesome to queue up with friends with the freelancer option, but not being able to do roulette does kind of suck so I would love a change to this.