By the way, if these tunnels are near and/or under the barracks, that seems to be the way that Richard evaded the security of the sonic fence when he marched in and planted the torch in the quad. Alluding to this array of tunnels also lends credence to the theory that there could be a tunnel network on the island that allowed Ethan and Goodwin to get to the wreckage sites so quickly. It also helps to picture the connection to the tunnel entrance in Ben's (and formerly Horace's?) cottage and Smokey's lair. Indeed, some details are coming together a bit for us, however sketchy.
I hope that everyone is enjoying the Lost poster activities, the latest artwork of Smokey and Eko is awesome. A very good graphic for Halloween as well.