New to Call of Duty: Ghosts is the Extinction game mode. This is a 4 player, co-op game mode that blends fast-paced survival gameplay, base defense, player customization, and class leveling as you work together to survive and accomplish the mission at hand.
Extinction features four character classes with different abilities that help maximize the team's potential. The four classes are as follows:
Weapon Specialist
Ability: 20% more bullet damage.
The Weapon Specialist focuses on one vital task: destroy as many aliens as possible. The extra bullet damage really comes in handy when dealing with heavily armored threats or when fighting back a swarm of smaller enemies. Weapon handling continues to improve as the Weapon Specialist gains levels.
Tank
Ability: 25% more health.
The brute of the group, Tanks stand at the front and take hits that would otherwise knock out other, more fragile classes. The extra health lets you play more aggressively, getting into the thick of things and coming out alive. Additional levels further improve the Tank’s health in addition to their lethality.
Engineer
Ability: Provide armor for the drill and earn more bonus cash.
Without a functioning drill, your team will have a very difficult time progressing. The Engineer offers much needed protection to the team’s drill, incredibly useful during moments when you get overwhelmed. Drill maintenance and trap efficiency improve as the Engineer gains levels.
Medic
Ability: Revive allies more quickly.
When things go wrong – and they will go wrong – the Medic’s there to pick up the pieces and get the team back in fighting condition. Fast revivals can mean the difference between success and failure, and an active Medic can help turn the tide of an intense battle. The Medic gains faster movement speed and powerful healing abilities with additional levels.
Check out the Call of Duty: Ghosts Perks system for multiplayer.