The nearest thing that you can put in your loadout if you're eyeing the AN/PRC-148 Multiband/Intra Team Radio (MBTIR). This software-based radio is available as a dummy made by Spartan Airsoft and available at RSOV.com for US$48.99. You can place a small FRS/PMR radio such as a Motorola talkabout inside and make it look like a functioning radio. Then use a Peltor/Sordin or Swimmer type headset to complete the radioman look.