While the XV8 Crisis Battlesuit is by far the most common Battlesuit encountered by the Imperium, the XV88 Broadside Battlesuit variant has been identified as far back as the Damocles Gulf Crusade when it was used to engage heavy armour and provide fire support to squads of Fire Warriors. During the Damocles Crusade, the XV88 Broadside Battlesuit was quickly identified by the Imperium as a major threat to their armoured vehicles, whose soldiers soon learned to dread the whip-crack sound made by the hypersonic speed of a Heavy Rail Rifle round; the distinct noise could only actually be heard after the shot had already hit home.