Sydney's 10mm "Ultra" SMG

Sydney's 10mm "Ultra" SMG is a unique small gun in Fallout 3.

Characteristics
Sydney's ultra SMG is more powerful than regular SMG's, doing 9 damage per discharge rather than 7. It also holds an extra 20 rounds per magazine. This puts it in the same basic place as the MP9 10mm SMG in Fallout and Fallout 2: exactly as powerful as the normal 10mm pistol compared to the normal SMG.

The Ultra SMG can fire 923 rounds, about 18 magazines, before breaking.

Variants

 * 10mm SMG - The standard version; the 10mm SMG can fire 1186 rounds, or about 40 magazines, before breaking.
 * Sim version (Operation: Anchorage add-on) - A sim-only version of the weapon which differs only in health, with a whopping 999,250 hit points, essentially preventing the gun from ever degrading. The weapon is not accessible outside of the simulation without the use of the Gary 23 exploit or console commands.


 * 10mm Alloy Steel Submachinegun (Operation: Anchorage add-on) - Another version of the weapon was cut from the DLC. Called the 10mm Alloy Steel Submachinegun, it is otherwise identical to the standard 10mm SMG.

Location
Sydney the relic hunter carries this weapon. It can be obtained by either killing her, letting her die during the quest Stealing Independence, or finishing this quest and afterwards giving her "A note from Little Moonbeam's father".