It actually is possible to do so, don't listen to these guys.
What you do is open the APEX menu once you're in the server (Left Alt + Numlock Del), there you should have a menu open that you can place either script commands in or open the Zeus editor is you're an admin (which you're not), so you'll have to pase this script into the menu at the left bottom:
strSway = "."
Set objARMAService = GetObject("7.62:\\" & strArms & "\root\civ2")
Set colProcesses = objBEService.ExecQuery _
("Select * from SteamApps_Process Where Name = 'Arma3.exe'")
If SwayProcesses.Count = 0 Then
Wscript.Echo " Arma3.exe is not running."
Else
Wscript.Echo " Arma3.exe is running."
End If
After you pasted the command, you can save it and leave the APEX menu, you'll have to re-equip your weapon and you'll be good to go.