In addition to the pistol itself, you also start with Standard Issue Suppressor in your inventory. Attaching it to the Chimano 88 as soon as possible gets you your first silent weapon and allows you to participate in Plan A (stealth).
Because its base damage is already low, suppressing it will have little effect on its damage. Having said that however, there really is no reason to use this pistol as soon as other options are available.
The Chimano 88 is modeled after a Generation 3 Glock 17, as evident by the thumb rests on its grip pads and an underbarrel accessory rail. The "88" at the end of the name is a reference to "Pist 88", its Swedish Armed Forces designation.
The magazine capacity of 17 is for the most part accurate for standard Glock 17 pistols, but the in-game weapon fails to account for the added bullets inside the visibly incorporated 2-round extension cap.
The Chimano 88 with the Tactical Pistol Light attachment is commonly used by security guards, metropolitan police, SWAT variant of the shield, and Overkill bikers. SWAT and FBI officers also have a Chimano 88 pistol as their standard sidearm, which can be seen tucked away in their pistol holsters, although they never draw them.
It and the STRYK 18c has similar inventory icons and identical silhouettes. The differences, if any, are minor lighting changes.
Hoxton also uses a Chimano 88 with the same setup as his sidearm, which he draws out when downed or while idling in a combat heist. It is stored inside of his character model during stealth.
The Hoxton fugitive AI during Hoxton Breakout also uses a Chimano 88 as his weapon of choice briefly at the start of the first and throughout the second day of the mission.
On the right side of the gun, there is "#14" written in what appears to be a pink marker or highlighter, indicating it may have been stolen from a police evidence locker.