Loading Screen Tips or Instructional Clips
It'd be nice to see either the type of game mode you're loading into being described during the loading screen, or providing some tips.
Reason I say this is because in the new Retribution Mode, a lot of people don't seem to know what they're supposed to be doing. I've seen a lot of friendly players defending flags they just captured (which cannot be recaptured) instead of attacking the new objective. Players frequently won't advance into flags to cap or defend even when told its going to the other team.
An alternative would be if the ingame HUD had a little video pop up in the top corner with some commander character (just use a generic bot model or silhouette) relaying some message visually telling players to move up, or telling people a vehicle was making a repair request, or even things related to enemy AA vehicles (Be advised, there's a SAM on the field targeting our air support). A nice one would be just instructing people to recognise vehicles as the threat they are and deal with them. Countless times my team will do next to nothing to an enemy vehicle whilst the enemy team goes all out (and I really mean all out) on destroying mine, with every player carrying something to destroy them with.
An example would be something like the original Titanfall campaign, which was just MP matches overlaid with dialogue and story interactive clips.