i spent countless hours in those damn tunnels between 1999 and 2001. can't say i was able to explore much more than the north 1/3 of campus as i was either stopped by gates or spooked by motion detectors (i learned to stay away from welch). i remember i found a piece of cardboard hanging off a pipe with "20,000 exp" written on it approximately below RLM. haha maybe someone on here left it there.