Combine
An Item in where you can get from a vendor to get a hand-held radio, In which allows you to communicate in Voice Chat by changing frequencies for example 109.28 that redirects you to Squad radio and 102.12 to team radio. Generally, I think it would be a cool addition to quickly communicate with your squad and a lot more efficient way.
Rebels
This would also be cool for rebels to get the hand-held radios too. It would be craft able in the workbench and required to get a rebel suit for it to operate. Rebels would also be able to scroll through frequencies they wish to communicate in.
I don't know what else to add in here, but that's all from me.