The Flare is a player-craftable illumination tool similar to a hybrid mix of a slightly brighter Torch and an F1 Grenade.
Flares are fairly straightforward and operate like highway flares in real-world practice. Once wielded and used, the player will throw the Flare forward and onto the ground, similar to the function of the grenade, where it will continue to burn and illuminate the immediate area with a very bright red light.
More practical applications of this item are during online raid defense scenarios and in the Underground or Military Tunnels. They are excellent at drawing attention to yourself or any area in which they land during the night hours.
Flares are commonly dropped from several NPC scientists and crates and carts located around cave entrances. They are viable sources for emergency Gun Powder in a pinch if recycled.