Wilderness Warbands

Once every 7 hours on every world, a Warband will set up camp at one of three locations in the Wilderness (an active camp will be announced in the chatbox if Game is set to On). Talk to Quercus at the Wilderness wall north of the Grand Exchange and ask him about the current event. He will tell you when the next camp will be set up or the status and location of an active camp on your current world. Once you've found a world with an active camp, head to the location.

Camp Locations:

Location	Image
South of the Dark Warriors' Fortress	Image last updated: Dec 13, 2016 Update Image?
Southeast of Red Dragon Isle	Image last updated: Dec 13, 2016 Update Image?
East of the Lava Maze	Image last updated: Dec 13, 2016 Update Image?

Sabotaging the Camp:

Once you see the camp, do not enter it. In the centre of the camp, you will see a beam of light. You now need to sabotage this beam without being spotted by the guards around the camp. To do this, find a location outside the perimeter of the camp with a clear line of sight to the beam and attempt to interrupt it. Once the beam is interrupted, a group of another god's followers will be summoned and begin to attack the inhabitants of the camp. Once the camp general is dead, the remaining followers will teleport away leaving the camp free to be looted.

However, if you fail to interrupt the beam by being seen by a guard, the entire camp will become hostile and attack you without summoning the followers of another god, meaning you must kill all of the guards and the general yourself before being able to loot the camp.

Looting the Camp:

If you successfully interrupted the beam, you now have 10 minutes (5 minutes if you alerted the guards) to loot up to 25 supplies from a choice of three tents, each giving supplies for either Herblore, Farming, Mining, Construction, or Smithing. A total of 1,000 supplies can be looted from each camp, so it's first come, first served.
Once you've looted 25 supplies, you will be teleblocked and must therefore run back to the Wilderness wall to be able to turn in your supplies for a reward at Quercus. Changing world while in the Wilderness will remove any supplies from your inventory.