Bunkers

Bunkers is a small Crysis modification. The player begins on route to a military bunker. On the way he is informed an alien species is attacking earth and senior military staff have a cunning plan to stop the alien threat. 4 Bunkers have been created in several key countries. Each of these bunkers contains a device which needs to be activated in order to prevent all nuclear and chemical weaponry from being activated. Its a doomsday device. If the aliens invade earth and the people in the bunkers are not retrieved there food and water will run out and they will stop activating the device thus destroying the planet. Its them, or us. The main story is told in a linear way, but playable flashbacks when the player sleeps  will flesh out the players past and the war with the aliens.