Firearms are weapons that use the combustion of gunpowder to launch projectiles at enemies at high speeds. However, they are unsuitable for dispatching Titans and have not progressed very far technologically with the Walls. Consequentially, they are almost always overshadowed by the vertical maneuvering equipment. However, they are still regularly used by the Military Police and other human-to-human security relations. In addition, their larger cousins, Cannons are used as the main line of defense against Titans by the Garrison. The Scout Regiment and the Garrison also use flare-guns to communicate over long distances.