A system comprising: a first user equipment configured to bidirectionally communicate with a first base station by a first cellular waveform; a first tactical radio coupled with the first user equipment by a first connectivity interface to bidirectionally communicate with the first user equipment, wherein the first tactical radio is configured to communicate by a beyond-line-of-sight waveform; a second tactical radio configured to communicate by the beyond-line-of-sight waveform, wherein the second tactical radio bidirectionally communicates with the first tactical radio by the beyond-line-of-sight waveform; and a second user equipment configured to couple with the second tactical radio by a second connectivity interface to bidirectionally communicate with the second tactical radio, wherein the second user equipment bidirectionally communicates with a second base station by a second cellular waveform, wherein the first user equipment bidirectionally communicates with the second base station by the first tactical radio, the second tactical radio, and the second user equipment; a first proximity server, wherein the first base station is coupled to the first proximity server; and a second proximity server, wherein the second base station is coupled to the second proximity server, wherein the second proximity server is configured to dynamically authenticate the first user equipment by communicating with the first proximity server, wherein the second proximity server is a public land mobile network proximity server; after authenticating the first user equipment, the second proximity server is configured to forward one or more parameters to the first user equipment by the bidirectional communication between the first user equipment and the second base station. a first user equipment configured to bidirectionally communicate with a first base station by a first cellular waveform; a first tactical radio coupled with the first user equipment by a first connectivity interface to bidirectionally communicate with the first user equipment, wherein the first tactical radio is configured to communicate by a beyond-line-of-sight waveform; a second tactical radio configured to communicate by the beyond-line-of-sight waveform, wherein the second tactical radio bidirectionally communicates with the first tactical radio by the beyond-line-of-sight waveform; and a second user equipment configured to couple with the second tactical radio by a second connectivity interface to bidirectionally communicate with the second tactical radio, wherein the second user equipment bidirectionally communicates with a second base station by a second cellular waveform, wherein the first user equipment bidirectionally communicates with the second base station by the first tactical radio, the second tactical radio, and the second user equipment; a first proximity server, wherein the first base station is coupled to the first proximity server; and a second proximity server, wherein the second base station is coupled to the second proximity server, wherein the second proximity server is configured to dynamically authenticate the first user equipment by communicating with the first proximity server, wherein the second proximity server is a public land mobile network proximity server; after authenticating the first user equipment, the second proximity server is configured to forward one or more parameters to the first user equipment by the bidirectional communication between the first user equipment and the second base station.