Chaos Light Cruiser
The Light Cruiser is a type of warship that straddles the line between Escort and Cruiser. Better-armed and protected than an Escort, a Light Cruiser is still just as fast, which is why they are often used as flagships for Escort squadrons.
Light Cruisers are a rare sight in Chaos fleets, outside of the Strike Cruisers used by recently-turned Renegade Space Marines.
Light Cruiser Classes
Hellbringer
Known to bedevil the isolated communities in the lawless frontier of the Koronus Expanse, the Hellbringer is a swift but powerful class of ships of unknown origin. Imperial experts are baffled as it matches no known existing design, leading many to believe this is a relatively new development, constructed by a Heretek enclave or even Dark Mechanicus Forge World.
The Hellbringer has been seen in two configurations: as a Carrier or a Gunboat. The Carrier variant was armed with a pair of Launch bays and long-ranged Macro Weapons Batteries, while the Gunboat replaces the Launch Bays with long-ranged Lance Broadside batteries instead.
In Battlefleet Gothic
The Light Cruiser category didn't exist in the Chaos fleet list, which instead jumped straight from regular Cruisers to Escorts. And no, Strike Cruisers from Chapters that went Renegade still don't count.
If it had, however, it's likely that it would have the same list limitations as regular Cruisers, which meant that only up to a dozen could be included at any time.
The Hellbringer itself doesn't come from the specialist game at all; instead it comes from an entry in a supplement of the Rogue Trader RPG from FF Games describing Battlefleet Koronus.
In Battlefleet Gothic: Armada 1 & 2
"Borrowed" from the Rogue Trader RPG to make sure all the ship size categories had their representatives for all factions, the Chaos Light Cruiser variants display both the high speed and longer weapons ranges that would soon characterize the larger ships of the fleet.
That said, the Light Cruisers are comparatively cheap, and with their long weapons ranges, can ably serve as support to their larger brethren.