How to start the Expunge: Labyrinth mission in Destiny 2 The first Expunge: Labyrinth mission is part of the ongoing seasonal Path of the Splicer questline, debuting during the third week. To start Expunge: Labyrinth, you must be up to date with the Path of the Splicer questline. Once you have completed Path of the Splicer I and II from previous weeks, it's time to visit the H.E.L.M. social space. Head all the way to the Splicer Servitor location on the west side of the hub. Once in there, talk to Mithrax and start Path of the Splicer III. He will give you a similar mission to the ones before, but with the key difference being that it will take place in the Tangled Shore.