So far medics are only moving at 2 tiles per round towards it and that may well be accidental and lords hit a wall on their path there. Looks to me like scientists are going to get it first (while brewers and medics more or less accidentally got just as close, they have only 1 path leading closer to it, while scientists have 2). Not sure whether the other 2(3) factions want to spent resources to take it from them, if we aim to get everyone out alive thats probably not the best idea.