The description ofrules for the ballistaballista on p. 255255 of the DMG statesstate that to make an attack the weapon must be loaded, aimed, and fired. Each of these takes one action. However, could each of these actions be performed by a crew of three, with one character to perform each step, thus allowing the ballista to be fired once per round?
My assumption is yes, but there's nothing textual to support this. Am I missing something?