The Kobus 90 has a very high magazine capacity of 50 rounds, and can be modified for relatively high damage. Although it has a considerable amount of recoil, it is still not as high as the Para's and can be compensated much easier. This makes it a capable well-rounded SMG.
However, while it is very versatile, it cannot be modified to cope with a specific situation, like the Compact-5 and the Para can, only being able to equip the standard 5 attachments slots. It also has a relatively small reserve ammo pool, allowing for only 2 extra magazines. Another flaw is its slow reload speed for any players who don't have SMG Specialist.
Despite its flaws, for offensive missions where stealth is irrelevant, a Kobus 90 with Long Barrel and Fire Breather Nozzle is easily one of the best weapons to bring damage-wise.
Fitting the Kobus 90 with the Long Barrel and a damage increasing extension, such as the Fire Breather Nozzle is an excellent choice for taking down Bulldozers on higher difficulties. The high damage output, low recoil, and large magazine make it possible to shred through a Bulldozer's face plate and take him down single-handedly with less than one magazine. However, the limited ammo reserve prevents the player from using this tactic too often.
Due to it being flat and simple to use, a stealth-centric player should stick to the default sights of the Kobus 90 if they were to use it, though they might want to get close to the target since aiming with the factory sight set gets awkward at long ranges.
Having the Fully Loaded skill, preferrably Aced, benefits the user of the Kobus 90 greatly, as it expands the weapon's total reserve capacity while also greatly increasing the amount of rounds replenished per pickup.
It is inadvisable to use a laser/flashlight as the Kobus 90's iron sights are rather obstructive, adding such mod on would only hamper the player's aim when firing the weapon, this however is less of a concern if optics are fitted.
*The LED Combo is based on the Leapers, Inc. UTG LED Weapon light and Laser. **Although the main flashlight has a toggle switch, the laser sight component of the LED Combo is pressure-activated, meaning the laser will stay on as long as the pressure switch is depressed. This switch is not placed where it should be, however (on foregrips, magazine wells, etc...) and is instead ziptied to the main taclight, leaving no plausible mean for the user to toggle it without awkwardly moving their off hand off the weapon and gripping the attachment itself.
*Upon release, the default reticle of this sight was a chevron instead of the retail version's red dot. After the release of the Gage Mod Courier DLC, it was reverted to the regular sight's red dot. *It is functionally the same as the standard Military Red Dot Sight, but the sight's casing is tan instead of black with the line "A-10" scrawled on near the adjustment knob. The sticker on the lens cap's interior also says "I <3 Payday" instead of having a picture of an American flag. *This sight was based on the Aimpoint CompM2 optic. While it is portrayed as a high-zoom scope in-game, the CompM2 is actually a reflex sight, meaning it offers no magnification in reality.
The Acough has the greatest zoom in the game for a non-sniper scope. That being said; the high zoom level combined with its bulky sight casing can hamper target acquisition at point blank range, pairing the scope with a laser sight can dramatically alleviate this potential difficulty.
The binary code on its pattern translated into text says "mayonnaisemayonnaise".
The Alamo Dallas belonged to a hitman named the "Jester Warrant". She had her identity unknown until she met her "untimely end", presumably caught and/or killed, because of the SMG's meat hammer head which she pulverized her victims with.
The Greek text on the side of the skin reads "Molon Labe" when converted into the standard English alphabet, meaning "come and take [them]", and is a classical expression of defiance.
The Kobus 90 is based on the FN P90 TR. Adding the Long Barrel mocks it up into the now-discontinued PS90 TR model, though the impression is far from perfect due to the barrel mod being slightly shorter than that of the PS90 and the retention of the P90's flash hider.
There is a visible BB feed tube under the magazine where the magwell should be, a side effect of OVERKILL modeling the guns off of airsoft products.
The magazine became entirely translucent following the first-person animation update, which allows the player to visually monitor the Kobus' remaining ammo as they use it.
Unusually, the loaded bullets in the magazine are all right-side oriented, with the tip of the rounds facing right. A real P90 magazine would have the loaded ammo facing left instead.
In The Guide of Bain and some promotional material, the Kobus 90 is shown with a tan finish instead of the black scheme used in the game. It is featured with a dark earth-colored frame in the FBI Files depository, though.
In the PAYDAY 2 Beta, the Kobus 90 was called the Project 90. This could have been a reference to the P90's project name, Project 9.0, or to a weapon in the video game Dead Trigger of the same name.
The Kobus is unusual in that, like the CMP, its gadgets are mounted on the left side of the gun. Most other weapons have their gadgets mounted on the right.
Inspecting the Kobus 90's in-game model reveals that the selector dial is set to semi-automatic fire.