I would like to see in game options that allow you to better configure the audio options. Rather than Arma 3 using the 'default' input and output, I would like to be able to configure game audio and chat audio through different devices.
I know that a lot of people use Mumble and Teamspeak but for a lot of public matches this is simply not always viable.
For instance, I use a headset much like you get on the xbox (one speaker mono, with arm microphone). This is obviously no use for game sound, but is ideal for chat.