Gun Katta is a conceptual combat, which primarily uses two firearms at the same time. Through analysis of thousands of recorded gun fights, it has determined that the geometric distribution of antagonists in any gun battle is a statistically predictable element.
The Gun Katta treats each gun as a total weapon. Each new position representing a maximum kill zone, inflicting maximum damage on the maximum number of opponents, while keeping the defendant clear of the statistically traditional trajectories of return fire.
The perfect gun of the Gun Katta would have 3 firing modes: semi, 3 round burst, and full auto. The gun used by the Cleric in the movie Equilibrium did not have 3 round burst, though it did have the option of retractable spikes in the magazines. The caliber was probably .22, for two reasons: More ammunition could be stored in the magazine, and it would be much more controlable.
*please note, this firearm is the primary weapon of the Tetro Grammaton, though, others could be used.
*note the spikes, which, when used correctly, can be a formidable weapon.
Cleric using Gun Katta at the beginning of a firefight.