I have similar ideas.
1. Streamline req, let marines buy shit from their own vendors, nobody gives a fuck how many gyros and BCs are in a round
2. Limited stuff still goes in squad req and req like each squad gets N amount of AP mags (so like now)
Now we can use the time at the start of the round for MEANINGFUL interactions instead of repetitive busywork
3. First there would be a COMMAND briefing with CO, XO, LTs and SLs
4. Then there would be SQUAD briefing where the SLs explain the orders
This way we get 2 meetings where roleplay is possible instead of the current briefing where chat scrolls at lightspeed and people just spam sounds.
Some mapping is needed but not much.
5. Then the GENERAL briefing would happen with the usual CO stuff but you could just make a shorter and better speech instead of "uh.. bravo goes to the.. fob.."
I guess this could always happen in the hangar because you are "sending off the troops" then the briefing room could be repuroposed into 4 squad briefing rooms.