When the loader is killed other AI will move to the loaders position.
There will be no 3d Voip chat.
My feedback on both of those:
This is a partial fix, but penalizes full human crews ( team tanking ) as they have the no one to replace the loader, even though they have people who would be willing to do so.
The purpose of 3d chat is not to force everyone to use TS, it is meant to add flavour to the game. Yes forcing people to use only 3d would make many players go to TS. However dismissing 3d voice chat because of that is stupid. Have both. Define a radius where underneath that radius players on both teams will hear speech and it will be clear, over that radius only your team hears the communication and some audio effect is added to tell them that it is from a distance. ( some radio garbling, a squak, whatever you want). Players could then bind another key to 3d chat only, or perhaps double tap their chat button to use the radio and 3d chat.
The benefit of 3d chat when you KNOW that the voice is local is that you can say things like "grenade" or , "to the right in that high window", or any other sound byte of information that would not work AT ALL in ROOST.