By applying some simple game-design theory, the fan discovered that stability does not only reference the horizontal kick of a weapon. He dispels this popular belief held by the Call of Duty community and instead presents a new understanding of how recoil works in the Modern Warfare engine.
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Most modern FPS style games use the same model of recoil. Using this system, players can be assured that their weapon will not act the same every time it is fired, giving Modern Warfare guns a realistic feel. It is important to understand that although the the bullet spread is randomized to some degree allowing the gun to kick in several directions, depending on the point of impact within the recoil model. If the bullets are biased towards a northern or eastern point, then the gun will kick in the opposite direction.
In their actual test, the player uses three variations of an AK-47. Each one had a drum magazine, no stock, and an 5.1’’ barrel. The base weapon was left as is; the control variant had a merc foregrip and a compensator attached, and the third stable version was equipped with a muzzle brake and commando foregrip.
The test was simple. The player stood in front of a wall and shot as many bursts as possible. After each burst, they put the collection of images into photoshop and aligned all the active holes into a single image. After comparing all the groups and shots they learned that the base version did the worse showing a huge gap between the first and fifth bullets. This shows that there was strong recoil within the gun.
It was not till the third weapon was inspected that the fan noticed that the gun had a vertical kick. The bullets biased themselves towards a single point and after several tests, the possibility of a coincidence was lost completely.
From this experiment, players can learn that Modern Warfare’s weapon recoil stabilization would be better described as recoil randomness. It is not the recoil as much as the randomization factor of the bullets themselves that is being adjusted. If a player puts stability attachments on a gun they will find that the weapon has a decreased bullet spread. This would decrease both vertically and horizontally the overall spread of the weapon and by default decrease the recoil from both directions.
Although this is a limited test the information is vital to understanding the inner workings of Modern Warfare’s attachments and weapons. As Infinity Ward adds new guns, players will be able to make informed decisions using this information when customizing their brand new firearm.
Call of Duty: Modern Warfare is available on PC, PS4, and Xbox One.
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Source: trofch1k (via Reddit)