Categories Game Guides

What’s Clearance, Threat, and Corruption’s role in FBC: Firebreak?

Tailoring operational parameters forms a core gameplay mechanic in FBC: Firebreak. When preparing for missions, operators modify Security Tier, Hostility Level, and System Anomalies. These configurations significantly influence mission structure and rewards through undocumented interactions, which we’ll clarify below.

Mission Configuration Breakdown

Mission preparation interface displaying operational parameters

Operational readiness screens present three adjustable parameters that dictate mission parameters. These selections alter environmental complexity, adversarial presence, and anomaly frequency during containment procedures.

Security Tier Explained

Security progression dictates operational scope, determining the number of containment zones beyond initial ingress points. Maximum Tier assignments unlock multi-phase operations concluding with high-risk engagements against anomalous entities.

Higher tiers directly correlate with salvage opportunities. Extended operations provide increased access to abandoned resources through discovered stashes and defeated hostiles.

System Anomalies Overview

Anomaly activation introduces procedural modifications, generating unpredictable environmental conditions and entity behaviors. Elevated anomaly levels enhance material acquisition rates for equipment augmentation while enabling specialized mission variants.

Hostility Level Mechanics

Combat intensity scales with threat calibration, offering four escalation stages. Elevated settings amplify entity swarming behavior, reinforcement intervals, and elite unit deployment frequencies. These adjustments primarily increase operational experience yields rather than material rewards.


Operators retain full discretion over mission configurations, enabling customized operational experiences ranging from brief containment sweeps to prolonged high-risk engagements. For additional strategic insights regarding Oldest House protocols, consult advanced tactical databases.