The Incident, the Cerberus System, and Cerberus.
While looking over the blast door map recently I noticed a few things that led me to develope a different take on the incedent and the Swan station. first I would like to mention that I believe that what we sawin the Season 6 episode “The Incedent” is not the same incedent that led to the sealing off of sections of the Swan and the implementaion of the 108 protocol.
As I was looking over the map I noticed something about the notations for Cerberus (the name the mapmakers used for the Smoke Monster). Cerberus is mentioned a lot on the map but there is a notation that is different from the other notations. In the area of the map concerning what may have happened to the Staff there is a referance to a possible malfunction of the Cerberus System. This is the only place on the map where the words ‘cerberus’ and ‘system’ are used together. Every other note about Cerberus just uses the word ‘cerberus.’ Now we all know that the Smoke Monster has been refered to as a security system several times so it would be logical to assume that ‘cerberus system’ was just refering to the Smoke Monster. Well I got to thinking to myself “why would the mapmakers refer to a cerberus system on only one part of the map and just cerberus everywhere else?” My answer, the Cerberus System is the defensive measures (such as the sonic barrier) that DHARMA uses for the Smoke Monster (Cerberus).
Now on the section of the map where the Swan is there are two notations to consider. The first is the revernce to CV II being inactive after the accident. The second is the note about the escape conduits being blocked after the incedent. I believe that these two notes go together.
So this leads me to a possible scenario for the incedent that led to the implementation of the 108 protocol. The completion of the Swan and begining of the experiments on the E/M pocket draws the attention of the Smoke Monster. For some reason the normal defences in place to keep Smokey away from the DHARMA stations fails. Seeing a chance to investigate the Swan the Smoke Monster enters via vent near the Swan and uses the underground tunnels to actually get in. Who ever was manning the Swan would of course be terrified of the Smoke Monster and try to fend it off by utilizing the E/M pocket somehow. The fight with Smokey results in widespread damage to the Swan but DHARMA does manage to fend off Smokey. DHARMA then realizes that they actually made things worse and have to seal off part of the Swan and implement a protocol to deal with the E/M pocket. In the process of sealing off part of the Swan they decide to seal off all underground access in order to keep the Smoke Monster out.