SCP-049 is humanoid in appearance, however the foundation is unable to study it's face and body due to it wearing a plague doctor garb.
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INGAME
SCP-049 is a hostile entity that will attempt to "cure" the player of a nondescript plague, it is encountered as of Version 0.7.2 inside the maintenance tunnels along side several instances of SCP-049-2 which are reanimated remains of former Foundation personal. Initially upon entering the tunnel area SCP-049 is held it will be hidden from sight in a maintiance closet and the SCP-049-2 instances will playing dead until the player enters the fartherst corner of a containment cell, upon this happeneing SCP-049 will emerge to intercept the player and the 049-2 instances will reanimate and attempt to attack the player. The touch of SCP-049 is fatal however the SCP-049-2 instances attacks are not an instant kill attack, instead they will wound the player and slow them down allowing for either more instances to attack the player or allow SCP-049 the chance to intercept the player.
If the player is in near proximity to SCP-049 it will communicate with the player, typically remarking on it wanting to cure the player.
If the player is touched by SCP-049 the player does not die yet, instead the player will regain consciousness as a SCP-049-2 instance attempting to attack an MTF soldier, the soldier will identify the player and terminate him.
SCP-049 DISCUSSION
#1SCP:CB Administrator. 99% of my statements are my own and do not represent the official developers viewpoint.