How Many Gunmen Would You Like?
• Number of gunmen front/rear = 0/2, 1/1, 1/2, 1/3, 2–3/2, 1/≥2, ≥1/≥1, ≥1/≥2, 1/2?, 2?/2?, ≥1/?, 1?/1?, ?/?, 6 total >2 rear, only front.