Squad Rating is the primary determining factor in the difficulty of a set game of Night of the Dead. It is the average of all active players. In Recruit Mode, if there are any players above 1800 Rating, the game will count them as 1800 rating when calculating Squad Rating. Players that were dropped, disconnected, or otherwise timed out during loading will not be counted. Dead players, or players that left after the game's start are still factored in. The higher the squad rating, the more health enemies have, and the more numerous their spawn. Certain factors are also determined by Squad Rating. For example, Brood Mothers will only appear in Normal Difficulty Easy Company games with an 1800 or Higher Squad Rating.