It reminds me of the Degeneration teaser where the plane crashes! 
Also for those that want a singleplayer campaign and characters with some backstory, the game can be played offline, with the CPU A.I taking control of the other survivors (ok.. I know that's not exactly a singleplayer scenario) and it has 3 times more lines than Half Life 2 (8.000 lines of spoken dialog!). Every time the survivors make it to a checkpoint they say something about their past, what happened, how they feel etc. You have to play the game an enormous amount to times to hear all the lines of the survivors.

Also for those that want a singleplayer campaign and characters with some backstory, the game can be played offline, with the CPU A.I taking control of the other survivors (ok.. I know that's not exactly a singleplayer scenario) and it has 3 times more lines than Half Life 2 (8.000 lines of spoken dialog!). Every time the survivors make it to a checkpoint they say something about their past, what happened, how they feel etc. You have to play the game an enormous amount to times to hear all the lines of the survivors.
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