In BioShock: Infinite, you generally see two versions of the same class of weapon, a standard one used by Columbia forces and another used by the Vox Populi. For example, the Columbia Carbine and the Vox Burstgun, or the Columbia Shotgun and the Vox Heater.
Are there any consistent differences between these weapon versions? For example, do Vox weapons do more damage but have lower accuracy, or less damage but a higher firing rate?
Or are all the weapons unique, and it's just coincidence that there's one of each type for each faction?