Given that each variant of the Tunnel 01 ſection contains a ladder, and on this map each tunnel variant contains four (4) of theſe, it may therefore be ideal to let the uſer define in the module to which ladder they wiſh that ſpecifick module to link to.
As there is a poſſibility of having one (1) to any number of ladder ſections ſhould the uſer define a cuſtom tunnel ſyſtem, it may be more extenſible to link the module to the ſection of tunnel to which it ought to lead—this would allow the module to function on other terrains as well, ſhould the uſer place a tunnel ſection and module on the map and ſynch them together.