Without the specialized knowledge of the Mechanicum, the advanced [[Arcus Launcher]]s have slowly broken down and have since been replaced with more common rotary [[Missile Launcher]]s. In addition, its stocks of its rare warheads have dwindled. However the Arcus is still used by some [[Space Marine]] [[Chapter]]s as a fast strike tank, racing it forwards to saturate a target area with incendiary devices and using its renowned speed to escape unscathed. This enables the Chapter to clear otherwise redoubtable bunkers and fortresses with brutal efficiency.{{Fn|7}}

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