"Water Chip Down"
Take one part generic RPG, one part generic FPS, 3 discs of Fallout, a patch of Linux, and a hint of tabletop games. Blend well. Spread on one slice of Watership Down, and leave to settle.
Warning: may cause uncontrollable laughing.
(and to think all I was looking for was that quote from Bigwig near the end - something like "My Chief Rabbit has told me to defend this warren, and until he says otherwise I shall defend it")