Heavy Weapons Company
From Lexicanum
A Heavy Weapons Company is a detachment within the Imperium's Imperial Guard and consist of regiments that are dispatched in order to deal a heavy hammer blow on the enemy.
Though it is common practice amongst the Imperial Guard to attach individual heavy weapon teams to the regiment's other companries, it is not unheard of groups consisting entirely of Heavy Weapons Support comanpy in order to come onto the battlefield as a single formation. When called upon, the Heavy Weapons Company are often tasked with the destruction of the greatest of enemy threats namely responding to massive concentrations of enemy troops or titanic engines of war that possess colossal firepower. Individual Heavy Weapon Squads tend to field weapons that are suited only for a specific task in mind whilst anti-infantry weapons lack the necessary punch that can threaten heavily armoured vehicles and anti-tank weaponry cannot match the high rate of fire that is necessary to halt swarms of infantry.
Thus, the Heavy Weapons Squads were fielded in a full company formation and designed to work in concerts with other elements from other Heavy Weapon Company in order to ensure that they each engage as well as destroy the targeted foes. Their combined firepower when directed by a competant Imperial Guard Commander can easily cut down marauding mobs of Orks or shatter the spearhead of Chaos Space Marines or even break the well armoured tank convoys of the Tau Empire.1
