I have played a fair amount of Empyrean but have the following two issues with the current implementation
1 - If you have a Railjack and launch a public mission the mission just starts, there is no 10s counter to pause while players join your squad. I have found myself failing way too many missions because I launch a mission and get swarmed in under a couple minutes and still have no other players in my squad.
Whether this is a matchmaking issue or not the bottom line is give us players the ability like all other Warframe missions to pause the start until our squad is assembled.
2 -