Perhaps with the new game you could explore a new communications model.
Many games operate through pre-canned audible messages the player can select from a menu.

Advantages:
1. The internet is full of tards. If your game has a broad audience it may include young players that should not have to deal with the crap you'll get on open vox and open text. Tards will skirt any word filter, and you would need armies of mods to police every game. By locking down comms to structured communications, game critical information can be exchanged in a controlled manner.
2. Younger players may feel less intimidated in this mode as you can't tell their age when they are sending pre-canned messages.
3. Programmatic controls can throttle abuses of the message frequency and prevents other degenerate behavior more deterministically than word filters.
4. Programmatic messaging could have other advantages like map persistence. (More on that later.)
5. Pre-canned messages facilitate communication for players who have difficulty being understood when speaking English.
6. It could be designed so that specified wingmen or squad members have vox enabled. Or they could use TeamSpeak.
7. Pre-canned comms reduce network traffic.
8. You could have open text and vox available, but perhaps it should be off by default and have to be specifically enabled and a warning message read and verified "accept!".
OK. I'm just brainstorming here, so I may not have thought of everything....
There would be different modes and different methods of invocation.
*Tactical Messages
This is like range vox. Only players is a certain range would receive these.
-Check Six. An oldie, but a goodie.
-Distress call. You are in deep kimchi. HELP! The players icon would flash red on the clipboard map and over their plane.
- Request Support. Not actually in grave danger yet, but could use backup. You may be going in to drop troops and need cover. You may have spotted a group of enemy near you and you are looking outnumbered. The players icon would flash yellow on the clipboard map and over their plane.
- Bingo Fuel/Ammo. Sorry, can't help much. Maybe RTB. The players icon would flash black on the clipboard map and over their plane.
- Damaged. Sorry, can't help much. Maybe RTB. The players icon would flash white on the clipboard map and over their plane.
-OTW. Cavalry is coming. The players icon would flash blue on the clipboard map and over their plane.
-Salute, WTG Team, etc....
*Strategic Messages
These are messages for the entire team. Most of these are viewed on the clipboard map as map pins and notified via audible message.
-Base under attack. An oldie but a goodie. Base is flashing on map.
- Enemy Base Targeted. A red map pin is stuck at the base that a player wishes to get help in attacking. Pin will fade away after (15 min?)
- Troops Requested. A green map pin is stuck at the base that a player wishes to get troops delivered to for a capture. Pin will fade away after (15 min?)
- Supplies requested? Base defense requested? Etc, etc.
[edit] Forgot to mention...I assume you would right-click on a base on the clipboard map and select a choice from a pin menu. And maybe a player can only have two active pins at any one time to avoid abuse.
$0.02.

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CptTrips