Reach The Lab via transit

The Lab is an underground TerraGroup research facility — accessible only by transit, no insurance, full of Raiders and Scav-Raiders. There are two transit entrances: Streets → Lab (underground entrance in front of Klimova 16A, look for the Cosmonaut painting on the wall) and Factory → Lab (the sewer tunnel in the flooded basement area). Both consume one TerraGroup Labs access keycard on entry. Transits open 1 minute after raid start, so don't sprint to them immediately. Lab transit keycards are flea-buyable, but the cheapest path is bartering one from Therapist or Mechanic at higher loyalty — the barter is sometimes 60-70% cheaper than the flea markup. Stockpile a couple before queueing; you'll burn through them across Tour, Blue Fire, and several Ticket steps.