Zenith ZAP

The Zenith ZAP is a non-lethal weapon in Deus Ex: Mankind Divided.

Overview
The Zenith ZAP is part of the Zenith line of pistols and is a perma-silenced, non-lethal weapon that serves as the close-ranged counterpart to the TRQ 203-C Longsword. It serves as a trusty weapon for a stealthy player who wishes avoid performing takedowns to conserve bioenergy, or because getting up close to their target would risk detection.

The ZAP takes down all human enemies in a single hit, except for EXO-suits and the endgame boss. The ZAP is still useful against them by being able to momentarily stun them, allowing the player to immediately follow up with a takedown during the stun period. The ability to handle all human enemies makes the ZAP a versatile weapon. However, unlike its predecessor in Human Revolution, the ZAP cannot disable security devices and Bots.

The ZAP has a base maximum range of only 8 meters. When standing and aiming straight, the maximum range is approximately 8.15-8.20 meters.

Gameplay guide
Unlike lethal weapons such as the Zenith CA-40 pistol, the ZAP does not require head shots at all, since a single body shot will immediately take down any organic enemy. A single hit takes down even Shadow Operatives with an active Titan Shield, something that cannot be accomplished with any lethal firearm. However, hitting them before they turn on the shield will occasionally (similarly to the TESLA) make them switch on their titan shield. Unless you fire a second shot at them once it's up, there's a 50/50% chance that they'll come out unharmed and conscious.

Against EXO-suits, the stun time resulting from the ZAP is shorter than the stun time from a typical EMP round. However, stealthy players who prefer to sneak up on EXO-suits will find the ZAP to be sufficient, without the need for any EMP ammunition, as long as the follow-up takedown is correctly timed.

Due to the ZAP's short range, the laser sight weapon modification is very useful on this weapon, because the laser dot only appears when the target is within the maximum range, and disappears when the target is out of range. The laser sight thus permits the player to easily determine whether a particular target is within range. Additionally, the laser sight significantly increases the accuracy of the ZAP, especially while moving.

The ZAP has to be cycled after each shot, as it is a bolt-action weapon. Not only does this make Adam rather vulnerable between shots, but poor positioning can lead to early detection, and due to the nature of the weapon, you're not likely to be able to retaliate. The reload branch of the cybernetic weapon handling aug not only speeds up the abysmal reload speed, but also the bolt motion between shots, meaning the tier three reload aug synergizes exceptionally well with the ZAP. Please note that firing the weapon will cause Jensen's cloaking augmentation to deactivate. To avoid open combat, stay in cover when firing the ZAP. Due to the very real chance that enemies will eventually get alerted to your presence (or spot a downed ally), minimize risks by moving from cover to cover, as well as remember your ability to throw props and debris to divert patrols. Despite being silenced, the ZAP could still attract the attention of enemies if it is fired too close to them, or if it hits their armor plates.

The ZAP shines when you're looking to take out a couple key targets, or have the skill and/or augs necessary to compensate for its slow rate of fire. As mentioned previously, headshots aren't necessary, as a hit anywhere will sink the majority of organic targets, but headshots not only award slightly more experience points, they also all but eliminate the targets' noises, dropping them to the floor instantly, rather than leave them standing, spasming, and screaming, which is crucial when you're doing your utmost to not be detected.

Some not so glorious parts of the ZAP are its very low range, slow rate of fire (can be improved upon somewhat), slow reload (can also be improved upon), expensive and uncommon ammo, and its need for a laser sight to be effective. Overall, and despite some harsh downsides, this is a very useful weapon to have, its ability to quietly dispose of enemies undetected rivaled only by Adam's takedowns, without the associated energy costs and constant need for bio-cells.

Notes
 * In the System Rift DLC, the basement of the wine store holds a stun gun with a base reload of 80. It's also fully upgraded, including a laser sight. Note that the abnormal reload speed also applies to the rechambering between shots. It can be found behind some fridges in the basement, alongside a box of stun gun darts.

Trivia

 * Based on its bolt-action operation, the ZAP was probably inspired by the suppressed pistol.
 * Contrary to the inventory description, the ZAP is not a single-shot weapon as each load of ammunition provides several shots worth of Stun Darts before requiring a reload even in its vanilla state.