Following the release of the Ambidexterity/Akimbo perk/skill, two Compact-5 SMGs can be dual-wielded as the player's primary weapon. This greatly increases their damage output at the cost of impaired precision aiming, Stability reduction and quite obviously, the lack of a more capable primary.
All akimbo weapon modifications cost 40% more than their normal price.
Laser sights are almost a necessity for semi-accurate fire, as with all Akimbo weapons.
Due to the high rate of fire, low accuracy, and high magazine capacity, Tasers can rapidly deplete a player's ammo reserves. It is also much more difficult to hit the taser yourself while tased, which can result in downs or custody when away from allies.
Pairing this weapon with Low Blow produces a weapon with a high damage capability at short range and a relatively high ammo capacity. However, concealing the weapon to the required level may require stat boosts.
The Akimbo Compact-5's relatively high base stability is offset by its abysmal base accuracy. A more precise secondary weapon is heavily recommended in all but the smallest maps. Sniper-heavy heists or heists where enemies can fire from the edge of the map (Transport: Train Heist, Hoxton Revenge, etc.) become much more difficult unless this weapon is paired with a more accurate one.
The Akimbo Compact-5 can be modded for maximum stability (100), provided the modder has the Akimbo skill Aced. Note this only gives the player the same accuracy it has by default or worse (24-28), thus the weapons' effective range is still limited to close combat.
*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.
The Akimbo Compact-5 submachine guns are based on stockless MP5A4/MP5A5's, as evident by their 4-point fire selectors. Equipping the Sehr Kurze Barrel turns them into MP5KA4's sans foregrips, The Ninja Barrel turns them into MP5SD4's, and the Straight Magazine gives them the look and larger ammunition of the MP5/10, albeit without the MP5/10's bolt lock and release system.
The Akimbo Compact-5 normally fires in full-auto during gameplay despite each gun being visibly set to 3-round burst operation.
The "safety" function is absent on the weapon model, with the semi-auto selector option being painted white to replace it.
The Akimbo Compact-5's have the standalone version's Bare Essentials Stock equipped by default and cannot equip any other stocks. It strangely does not seem to be impacted by the lack-of-a stock, though, as it has the exact same stability as the standalone Compact-5.
The player can perform a tactical reload with the Akimbo Compact-5 despite it being impractical and awkward in reality. Due to how the bolt of the MP5 was designed, it will ride directly on top of the feed lips when the weapon is in battery, thus obstructing the new magazine's entry and preventing the user from properly seating it (if fully-loaded) when there is a round in the chamber. Tactically reloading the MP5 is in no way impossible, but will require the user to either load it with an incomplete magazine or risk a longer top up by locking the bolt back first and then load, usually losing the chambered bullet in the process.
During the reloading process, the player character will simply flick their Compact-5s downward instead of manually removing the magazines by hand. Strangely enough, the magazines themselves will fall out of the weapon on their own without the release paddles being hit.
The magazines bears real life markings to the real weapon. This is possibly a mistake, as it's doubtful H&K would allow their likeness used without license.
Additionally, "For law enforcement and federal use only" is printed on the magazines. This suggests that the weapons were stolen from a police or FBI armory.
The Akimbo Compact-5's may feel as if they are firing faster than the standalone weapon despite the unchanged rate-of-fire. This is due to the fact that the left-handed weapon will always fire immediately after the right-handed one, resulting in a more rapid, if not doubled, series of discharges.