User blog comment:CoDE-2K/Suggestion for Infinity Ward and Treyarch/@comment-24001421-20140122044524/@comment-25496444-20140123025300

It is just someone staying in one general spot/place/area (whether it be sitting in one corner, covering a building or the cave in Afghan for instance) for extended amounts of time. The weapons or other equipment don't matter, although they can help define it (such as Claymores).