Patient Zero: Set in the middle of a post-apocalyptic devastated human civilization where Humans are at constant war with a growing and terrifying enemy; You assume the role of a young special forces soldier who returns from distant lands to find himself and his unit in a struggle for their very survival, pitted against a foe unlike any other they have known before, his team must attempt discover what has befallen this world and through a long and perilous adventure stop this new evil before everything they know comes to an end.
These are environment concepts for the level, Enter the Beast.