Two cartons of smooth Sotoxis
Sotoxi is a brand of cigarettes in Doom 3. Cartons of them are found throughout the game in storage lockers, by equipment and ammunition, or by cola cans and empty burgerboxes.
A Sotoxi is equivalent to a full-strength, short cigarette. The computer station guards love to smoke Sotoxis, while drinking their coffee and using stolen medication from the medical labs. The chaingun commandos can be caught smoking a Sotoxi just as they walk out from a red-lite storage closet.