Terrorism is defined as a deadly act which causes fear in peoples lives. It is mainly caused because of the hate towards certain group of people. The weapon of terrorism targets the non-combatants in order to achieve an objective through the use of deadly acts is termed as terrorism.
The ARK (also spelled Ark) is a barrel attachment found in the Extinction maps Awakening and Exodus. It allows weapons to turn into a laser weapon, though it still uses conventional ammunition and also has the additional effect of causing extra damage to cryptids, which further makes any that are killed with the weapon it's attached to explode in a similar fashion as to the Pipe Bombs.
extinction. 1  the act of extinguishing. 2  the fact or condition of being extinguished or extinct. 3  suppression; abolition; annihilation: the extinction of an army. 4  Biology. the act or process of becoming extinct; a coming to an end or dying out: the extinction of a species. 5. Psychology. the reduction or loss of a conditioned response as a result of the absence or withdrawal of reinforcement. 6. Astronomy. the diminution in the intensity of starlight caused by absorption as it passes through the earth's atmosphere or through interstellar dust.