The 'catalyst cannon' is the catastrophically damaging weapon used by the Scrin Motherships. Perhaps the most powerful energy weapon of a wide variety deployed by the Scrin, the technology behind the catalyst cannon remains unknown, although GDI InOps may hold classified documents on its operation. A direct hit from the cannon is, the vast majority of the time, enough to completely destroy a building. However the weapon deals more damage if the structure attacked is in close proximity to other structures, as these nearby buildings will be subject to a lethal chain reaction. In this way the weapon has been used to raze densely-packed centers of population. For example, one blast was able to incinerate most of Berne.