The Whisperer is a submachine gun featuring high rate of fire, maximum armor penetration, and high accuracy. While, like the Firecracker, it cannot equip a grip to improve accuracy, its innate accuracy is the highest in its class, rivaling the Bosk 3 and Bramson. Edit
The Whisperer's unique SMART mechanic allows successful hit to increases the effective range of the weapon by 20%, which can be stacked up to 10 times; each stack expires after 20 seconds. (However, swapping to a secondary weapon or picking up dropped weapons will also cause the counter to reset to 0).
Overall, the Whisperer is potentially one of the worst T9 Prestige weapons due to its ability being negated by the Suppressor MK X (eliminates damage drop off), which means ultimately it is just a SMG with a higher rate of fire and accuracy, but with comparatively less damage. In many cases, the Whisperer is actually outclassed by the T5 SMG Bosk 3, due to the Bosk's higher damage and noticeably reduced recoil (the Whisperer features much more omni-directional recoil than the Bosk). The only advantage the Whisperer holds over the Bosk is armor penetration, and the ability to equip quick drop magazines, lasers, smart scopes and the Suppresor MK X.
High rate of fire
Maximum armor penetration
Very high base accuracy
Decent clip size
Effective at up to mid range
New update attachments make this weapon even more deadly
Unable to equip a grip to further improve accuracy
While the weapon description claims that the Whisper's special mechanic comes from a computer in the gun's silencer, in-game, the player can still swap out the default silencer for other muzzle attachments and the weapon's range-increasing mechanic will still work.
As of Update 27, Whisperer and Firecracker received a buff on damage statistics.
Whisperer's maximum damage points increased from 18 to 23 which is on par with Grinder's, Shred-4's and V.L.I.-35's maximum damage points(23) with Flash Hider muzzle. And Rate of Fire stats decreased from 805 RPM to 761 RPM on par with Bramson's Rate of Fire stats.