Stalcraft Wiki: CD-3b Armored Suit

In-game description (EXBO)

A combat version of the third suit in the CD series, created by stalkers from Horizon. Despite being classified as a combat suit, its anomalous protection indicators are almost on par with the CD-3a version. This was made possible by Horizon's collaboration with Research Institute 7.

Quoted from the game's own text in EXBO's public game data. Not written by STALCRAFT Meta.