Wow! Yet another complaint about complaints Ink, please give it a rest. If you aren't adding anything to a thread, respectfully, why post?
Bump!
I came up with this from another wishlist. I think that it would solve the white flag circumstance problem discussed at length here.
From another wish list for Ambiance sounds:
"Thought about and

for the idea.

On the application.
With the aid of soundpacks, some really cool battle effects can be created. I believe they would have to coincide with an identifiable event, like a bomb splash, after which someone yells out, "Medic!" or bomb whistle, "Cover my flank, incoming!"
Here is another useful one. As long as auto ack is up, you hear distant gun fire (whether or not it is actually firing). This will signal to the attackers that there are still ack up in a town or vehicle base. No more guessing."
Now, how easy is it for something like this to be coded, I don't know. I am just reaching when I assume that their is a "flag" (no pun intended) that signals the game that the town ack has been destroyed. A distant gunfire sound would play at reasonable intervals, and distances from the maproom until the game signals they no longer exist / have been destroyed. Although unnecessary, the direction of the ack could be followed audibly. I hear gunfire to my left, I direct my friend in a tank to check the east side of town for ack and he finds it.
If at all reasonable to do, it would increase the immersion into the game, using eyes and ears.