I'm working on the Freedom Trail mission and the Molecular Level main quest mission which requires access to the railroad. I went through and followed the red bricks and examined each ground plaque which led me to the old church. When I input the first four R-A-I-L into the plaque at the secret entrance it works fine. Once I go for the next "R" though it gives me the incorrect ticking noise and resets the code. It seems PC users can type in the walk-through-walls cheat to circumvent this bug. Does anyone know if a solution for Xbox users? Really bummed about this and would appreciate any help so I can avoid restarting the game.