Rework Operational Matchmaking, QoL Changes

THIS IS FOR OPERATION MISSIONS
I have just grinded from Substantial to Absolute as Bulwark.
I DO NOT WANT TO CHANGE MY CLASS WHEN I LAUNCH A MISSION FROM MY SHIP. I WANT TO HOST THE OP FROM START TO FINISH, WITH -OPERATIONAL- CONTROL FOR MY LOBBY IN THE MISSION THAT -I- LAUNCH.
WHEN I CHOOSE A MISSION, FROM THE SELECTED LIST, I WANT TO LAUNCH A FRESH MISSION. 
I DO NOT WANT TO JOIN AN IN PROGRESS MISSION OF SOMEONE ELSES, UNLESS I CHOSE RANDOM MATCHMADE, OR AM OTHERWISE ASKED. IE: After selecting a mission from the List, I do NOT want to be stuck into someone else's IN PROGRESS mission. WITHOUT BEING ASKED.
WHEN I CHOOSE TO JOIN ANOTHER PLAYERS IN PROGRESS MISSION, I DO NOT WANT TO BE FORCED TO CHANGE CLASSES, AFTER I JUST SAT THROUGH A LOADING SCREEN, WHY OH WHY TECH ADEPTS OF MARS, DO YOU LET ME QUEUE FOR AN ABSOLUTE DIFFICULTY MISSION, WHEN THERE IS ALREADY A BULWARK PRESENT, AND MY OTHER CLASSES ARE LVL 5-8. I do not want to force carries on others, OR be forced to sit through ANOTHER loading screen.
I reviewed other similar posts that had minimal or no feedback. I am not up to date on current news or patch notes if this has already been addressed/said to be working on.
This feels terrible to go through and with the effort would be a vast Quality of Life change to the Operation Matchmaking system. These are the staple changes that would definitely be extremely welcome as whole to any with complaints to these systems. 
Others mention editing Weapon Perks via Loadout Drop in Mission, that's a big *shrug* from me. While yes it would be another nice piece of QoL, I really get through the Mission without worry, and you can still select your other 2 loadouts.
Otherwise, it feels extremely bad to watch more than 3/4 of your health disappear to a Chaos Marine's kick, when you take bullets and others that don't do nearly as much damage compared to a power-armored kick, kinda lol.
One last note, apparently Terminators can Grab? There's an Ordeal for it, but I have still never been grabbed by one despite many hours and much close combat with them. Maybe increase its use for them?