Let's throw up a hint for squad COs on man-management.
Put up a mission and have your people join it. That way, they will take off from the correct field, in the right plane, with the appropriate load out. There will always be hassles with someone running late, server issues and myriad other little annoyances that can't be dealt with quickly through MOTD or other briefings.
The ten minutes before H00 always seems to bring with them a circus. By using a mission you can ensure all your people are being looked after and confusion minimised. You can even display the track to target on the map and one more bonus - they can't join until they've changed to the right country!
When you take off - reload the mission and set the time for H+ 15 minutes. If somebody discos, all they have to do is rejoin the mission and tell you when they are ready to go.
FSO is meant to be fun. Yes, even for COs and CICs and every now and then, CMs.