During the adventure offered in the campaign mode through Operation "Serpent's Whisper", the story kicks off in response to the insurgent group "New World," which has launched devastating attacks across the globe within days. Your mission is to neutralize this threat and trace the funding behind these attacks through 20 increasingly challenging missions. Be advised, the loss of an operator is permanent! 
Developed in collaboration with a former French Special Forces Commando Marine, "Black One Blood Brothers" stands out for its demanding and immersive gameplay. Command a squad of 10 operators, each with unique skills, and seamlessly switch between them to leverage their specialties in either first-person or third-person view. Success hinges on meticulous planning, optimal equipment management, and teamwork. 
Implement precise action sequences for each squad member using a complex yet intuitive "Battle Plan" system. Organize your forces into multiple teams, coordinate their movements, and devise custom tactics to tackle any situation, or switch to real-time command with "Quick Orders" for dynamic decision-making. 
Undertake high-risk missions including target neutralization, hostage rescue, bomb defusal, and retrieval of secret documents. 
Customization is at the heart of "Black One Blood Brothers." Build your squad from the ground up, selecting each member's skills and arming them with the finest arsenal. 
With a variety of game modes (Dynamic campaign, Spec Ops, War, POW, Siege, Lone Wolf, Blind Ops) and a powerful, user-friendly map editor, "Black One Blood Brothers" offers vast replayability. Customize your missions, adjust difficulty, select your battlefields, and share your creations with the community through the Steam Workshop.
30 missions
Not unlocked yetSuccessfully 30 complete missions
40 missions
Not unlocked yetSuccessfully 40 complete missions
200 missions
Not unlocked yetSuccessfully 200 complete missions
1000 missions
Not unlocked yetSuccessfully 1000 complete missions
Demolition
Not unlocked yetDestroy an infrastructure
Sensitive documents
Not unlocked yetRecover sensitive documents
Hostages
Not unlocked yetRescue and extract some hostages
Target
Not unlocked yetEliminate a high value target
Weapons cache
Not unlocked yetDestroy some weapons cache
Recon
Not unlocked yetSpot all enemies in a area
Capture
Not unlocked yetCapture a high value target
Secure
Not unlocked yetSecure a area by eliminating all enemies
Meeting
Not unlocked yetEliminate the meeting and steal the briefcase
Defusing
Not unlocked yetDefuse a nuclear bomb before the end of the countdown
Listening device
Not unlocked yetPut a listening device without being spotted
Prestige 1
Not unlocked yetAchieve 7000 XP
Prestige 2
Not unlocked yetAchieve 30000 XP
Prestige 3
Not unlocked yetAchieve 100000 XP
Prestige 4
Not unlocked yetAchieve 300000 XP
Prestige 5
Not unlocked yetAchieve 2700000 XP
Prestige Max
Not unlocked yetAchieve max rank
Squad editor
Not unlocked yetSave a squad
Map editor
Not unlocked yetPlay a custom map
Finish a mission
Not unlocked yetFinish at least once a mission