The red circles on your map indicate areas that are about to get firebombed. They’re very dangerous, forcing you to move quickly out of the way if you don’t want to blow up. That said, it’s more than possible to just run through a red zone and even survive (although the likelihood of getting a bomb to the face is pretty high), but a better strategy is just to get indoors and wait the bombing out. Any structure will shelter you from the explosions, and you can use red zones as temporary protection or to lose other players if you’re careful.
