Tier 1- Conflict in process or expected imminently. Curfew in effect, X-Team reserves at action stations.
Tier 2- A significant threat is known to be active in London and working against mutants. Use of a buddy system recommended off campus, X-Team reserves on duty to provide safe-walk services.
Tier 3- A significant threat is believed to be active or planning major operations against mutants in London.
Tier 4- Unconfirmed reports of a possible threat against mutants in London.
Tier 5- No significant threat level.