Terrence wrote an answer about Garmin Rino 120 with Detailed Basemap on September 25, 2012
Yes it will. I got the Rhino issued through the New Mexico National Guard and we used it for the purpose that you are intending to use for as well. I also found that the Rhino's two way radio has great range and you can talk when others on other commercial two ways cannot. Great product. Very durable.