First of i am new so don't be mad if this turns out to be talked to death or i am just of the hook please
I personally find these objective games, AASv3, rubbish. Because there is no real strategy or tactic when everyone rush the same flags, and the flags are another thing all together. Let me give you folks some other views.
I have played steel panthers: world at war which is a hardcore realistic ww2 turnbased hexbased strategy game where you start with a predetermined force which you can't reinforce and you have big maps. In this game from the start there where also flags which you needed to hold when the game ends (there are also flags which you gain points for holding each turn), when the turn limit is up. This gameplay often resulted in sovjet wawe attacks to the flags, often the few turns before the turn limit was up. And you win by having more points in the end and you also get points for killing enemy things.
The solution they reached was to create better, as in more fun and realistic, combat was to get rid of flags and have the players play "campaings" where you save your force between battles and thus create incitement not to waste your forces. Also artificial rule to only allow recon forces to spawn closer to the enemy.
Because they also realised that flags are a way to abstract things that don't need to be abstracted! What does the flags represent? They represent attack objectives, but the thing is in the military almost no rank has the same objective thus these global flag objective become ridiculous and this is why flags don't work in games tring to simulate real life warfare becuase every player in the server form commander and soldier with flags have the same objectives witch is bull.
Example: Battalion commander objective is to take the city "BLAA", he gives one company commander objective to take the docks, the company commander gives one platoon commander to take along the coast, the platoon commander give one squad leader objective to take the next right building, soldier gets objective to breach the door. See irl there are no "flags" they are always dynamical created with the overall objective to kill enemies and gain terrain! Everyone have different objectives. And whit PR firebase and rally system and command system there is no reason to use flags, all effort should be to remove them if you want this game to be more realistic!
So translated in to PR i think that if you want to have more real-life combat and use the commander more you have to work with command and control gameplay and have high timelimit and long vehicle respawn (this last thing will make players and the team be conservative of your forces).
This would result in more teamwork since people will ask for objectives and allow the commander to form a battle plan, since the main objective will no longer be "take the clearing in the wood because god wants it and will kill us if we don't have boots on that clearing exactly in 3 hours and 45 minutes" instead the team will work to take important roads and terrain on the map to limit the enemy movement and allow your own troops freedom of movement whit the ultimate goal to box in the enemy and strike at their base. Sicne in fact just breaking their lines and having your armour behind enemy lines ramping and flanking will win your team the k/d and allow you to push at the enemy base. Which is realistic, tanks historic use has always been to rampage behind enemy lines.
This is my views on the matter, i just don't want you to reinvent the wheel on this one.


