Have you ever tried to track command, SO, and SL messages during a frontline fire fight? That shit is awful, and most people don't have the basic good sense to silence their message preferences (When the toggle actually works) so actually useful information doesn't get lost in the drone of useless information.
Silence all weapon messages, except for when you get hit, by default. Maybe make it so all friendly fire is visible as well. Most players don't realize what's best for them, and making actual orders easier to see by default might assist in de-unga'ing the marine's coordination.