Imperial Guard. Heavy reserve troops for Empire (Halberdiers)
Heavy halberdiers in huge numbers to provide you with a steel wall while you are flanking or ambushing. Not capable to eliminate elite troops in same numbers but will stay alive for some time. Huge unit size allows you to reduce the number of frontline infantry units and take more agents/artillery/etc. Upkeep cost is twice higher than Greatswords have.
Recruitable in barracks tier 3. Require basic armory.