It may seem like a small thing, but wanting to have the same skin is another reason to not want to use the mission planner. Yes, I suppose you could just put up a mission so you can see the load out and field, and just not launch it, but you still risk getting some people just jump along.
If we plan a mission, it's not a matter of everyone talking, it's that we may launch in 15 minutes and certain people are either; engaged in a fight, afk, not even on yet, talking to other squads, etc.
We make it work with vox and text, but a squad mission planner would streamline and simplify the process without giving the squad any unfair advantage.