Leper

Lepers are a type of Cryptid that appear in the Call of Duty: Ghosts mode Extinction. 
Their only appearance is during the Challenge "Find and kill the Leper in 30 seconds". They spawn once the counter starts, in a spawn point far away from where the drill is placed, and proceed to head out of the map as soon as possible. Feral Instincts are most helpful to find it due to the instinct's ability to outline every Cryptid on sight. The Weapon Specialist Upgrade will also do this, as well as giving a bottomless magazine and a damage boost, all of which assist in killing the Leper more quickly.
The Lepers' behaviour is much different compared to all other cryptids, as the Leper will run away from all players and towards an unreachable area. The best way to identify them is by using Feral Instincts and looking at further parts of the map. They resemble a Hunter, therefore they're easier to identify at an earlier stage on Regular or Casual difficulty, where Hunters aren't common. Another distinguishable feature is the lack of red in the facial region, unlike much of the other cryptids.
The difficulty of Leper challenges varies from map to map and area to area. The challenge generally becomes harder if there is more area for the Leper to navigate in that the players cannot enter nor see, and the challenge becomes much easier if there is less of said area, often forcing the Leper into the player's line of sight. 
Despite the flare's ability to lure Cryptids towards itself, Lepers aren't affected (same as Rhinos), unless it's thrown nearby.
==Trivia==
*They're not affected by the Tank class upgrade.
*Lepers can attack the player, if it is attacked and is right next to the player. They do the same damage as Scouts.
*In extremely rare occasions, Lepers will attack the drill.
*A shot with the Hypno Knife will kill one instantly.
*Should the Leper die by a Vulture Drone, MAAWS, or a Sentry Gun, it will result in an automatic failure of the challenge. The Leper can also (rarely) abandon the map through another spawn point nearby its location before the timer runs out, ruining the challenge very early.
Category:Call of Duty: Ghosts Extinction Enemies