Explosive town hide and seek

This is a medium sized map with 50+ spots and a bunch of hidden passageways and underground tunnels. The map consists of a subway, an underground market and a big city ontop of it all. Twist is that every 30 ish seconds two airplanes will fly over the town and randomly drop bombs over it. (Keep in mind this can both ruin and win you the game) Big switch starts the map and small green button ends it. As for rules I suggest: Free movement Do whatever