Nemo
An operative of the Hegemony's Nemo Corps. Trained, bonded to an ECHO, and equipped with Soul Armor. Each Nemo channels Psi energy through their elemental classification.
Psi-Receptive
An individual capable of channeling or interfacing with Psi energy. Rare. Capability and classification range vary significantly between individuals. Required for Nemo Corps candidacy.
ECHO Level
A classification (1.0–6.0) denoting an ECHO's development tier. Levels 1.0–4.0 are assigned at bonding. Active development begins at 4.0. At 6.0, full cellular integration occurs — effects classified.
Cumulus
Standard-tier Hydra. Most frequently encountered in field operations. Manageable with standard Nemo protocols and equipment.
Prime
Elevated-tier Hydra. Catastrophe-level threat. Requires coordinated Sigma-unit response. Uncoordinated engagement is not recommended.
Nimus
Critical-tier Hydra. Strongest known classification. Full Sigma-unit deployment and command authorization required. Engagement protocols are classified above field level.
Sigma Unit
A full operational squad of Hegemony Nemos. Sigma-19 is the unit designation featured in this archive. Founded two years prior to active record.
Mortals
Individuals in the early stages of Psi-Surge exposure. Minds still partially intact. Protected under Hegemony doctrine. Mutate over time into High Mortals if untreated.
Symbiotes
Individuals whose minds have been fully consumed by the Psi-Surge. Coordination source and command structure: under investigation. Do not engage without authorization.