a firing pin an expelling charge 13 such as a quantity of either black or smokeless powder is positioned near primer 12 and firing of primer 12 will cause ignition of expelling charge 13 an ampoule 14 of frangible material is placed within cartridge case 11 near the forward end which is closed with a spacer 15 and an end cap 16 the frangible ampoule 14 is filled with a chemical payload 17 such as an air water reactive material which when dispersed will provide a cloud visible in daylight by way of example titanium tetrachloride t i cl 4 has successfully been dispersed to provide a visible cloud and also a mixture comprised of fifty percent titanium tetrachloride and fifty percent vanadium oxytrichloride has been used a flashcube 18 is positioned within cartridge case 11 and is separated from frangible ampoule 14 by a spacer 19 flashcube 18 is commercially available and is of the type that can flash without batteries the flashcube is provided with a percussive primer in its base which fires the lamp when struck by a tensioned spring each lamp has its own spring which is held under tension by a tiny retaining pin when the spring is lifted over the retaining pin the freed spring immediately snaps sharply against the flashcube 39 s metal tube to fire the primer the primer sparks fly upward and ignite zirconium foil within the lamp to provide a bright flash as best shown in fig4 of the drawings an initiator 21.