two things i would really like to see

1. emplacements. These would be especially useful for the defenders in the rush game mode for defenders because they get no vehicles could make sense to give them like anti tank guns (like a tow missile system) smaller anti air guns, and machine gun emplacements
2. body dragging. i really like battle field 6s mechanic of dragging downed team mates to safety maybe medics can stab teammates with the stim while dragging them and squad mates can do the same to each other even if they aren't a medic