Challenges (Extinction)

Challenges appear in Call of Duty: Ghosts mode Extinction.

A random Challenge will start when the player starts to drill a Hive. The Challenges are "Team Challenges", meaning that all players must collectively complete the Challenge. Each Challenge completed awards all players one skill point.

Challenges

 * Use only melee attacks to damage the aliens. (First Hive only)
 * Don't take any damage from the aliens. (First Hive only)
 * Keep shot accuracy at 50% or higher until the hive is destroyed.
 * Keep shot accuracy at 75% or higher until the hive is destroyed.
 * Don't go into final stand until the hive is destroyed.
 * Don't bleed out until the hive is destroyed. (Co-op only)
 * Protect a random player from going into final stand. (Co-op only)
 * Kill 10 aliens using Traps. (5 aliens on Solo)
 * Kill 10 aliens using Turrets. (5 aliens on Solo)
 * Kill 10 aliens using Propane Tanks. (5 aliens on Solo)
 * Kill 25 aliens while prone. (15 aliens on Solo)
 * Kill 25 aliens using Pistols before the hive is destroyed. (15 aliens on Solo)
 * Kill 25 aliens using SMGs before the hive is destroyed. (15 aliens on Solo)
 * Kill 25 aliens using Assault Rifles before the hive is destroyed. (15 aliens on Solo)
 * Kill 25 aliens using Sniper Rifles before the hive is destroyed. (15 aliens on Solo)
 * Kill 25 aliens using LMGs before the hive is destroyed. (15 aliens on Solo)
 * Kill 25 aliens using Shotguns before the hive is destroyed. (15 aliens on Solo)
 * Kill 15 Scouts with melee damage before the hive is destroyed. (10 with two or three players, 5 on Solo)
 * Kill 5 aliens while they are in the air before the hive is destroyed. (3 aliens on Solo)
 * Kill a Scorpion with melee damage before the hive is destroyed.
 * Find and kill the Leper in 30 seconds.
 * Don't reload your weapon for 60 seconds.
 * Don't use any abilities for 90 seconds.
 * Don't spend any money for 2 minutes.
 * Do not take any damage from exploding Seeker aliens until the hive is destroyed.
 * Spend $10,000 before the hive is destroyed. ($6,000 on Solo)
 * Spend $20,000 before the hive is destroyed. (Last Hive only, $15,000 with three or less players)
 * Keep the drill health at 50 or higher until the hive is destroyed.
 * Kill 10 aliens while at full health before the hive is destroyed.

Achievements/Trophies
Completionist (25 / Bronze Trophy ) - Complete all Extinction challenges and escape.

Trivia

 * The Barrier Hive Challenge to Protect the Helicopter from Scorpions cannot be failed and does not award a skill point.
 * Dropping money does not count as spending money.
 * Shooting propane tanks against aliens while prone does not count as killing aliens while prone.