Alliances2

A Household has no truce to offer a flood, and none to seek. The Imperial Knights stand in permanent enmity with the swarms and tides that out-body a lance — the Ork mobs, the Tyranid broods, the Genestealer Cults, the massed Guard blobs — the natural predators of a gang two to four models strong.

There is no alliance to be made here and no shared banner: the tide exists to drown the giants, and the giants exist to hold against the tide. In campaign play, a swarm House sharing a world with the Knights seizes the initiative in scenarios fought against them, flooding activations the lance can never match. This enmity stands throughout the campaign — it is never bought off, and the Household never seeks to.

The war-engine, lent to the Imperium. This Household is the single source from which an allied Imperial war-host borrows a titan when the war is worth marching for.

An allied Imperium force — an Astra Militarum regiment, an Inquisitor's retinue, an Adeptus Mechanicus maniple — may requisition a single Questoris or Armiger war-engine from this Household as a superheavy Brute ally. The oath opens only as the campaign deepens: a Household swears its word and lends an engine only once the war has proven worth the march.

The terms are campaign-only. The lent war-engine is fielded by reference in the requisitioning force and is never re-authored there; no Imperium fighter joins a Knights gang in an ordinary battle, and this Household takes no retinue of its own. The Knights are the heavy that others borrow — never the borrower.