The Sub-Machinegun is unlocked by completing the main game with an A or S rank on Normal or Hard. (Easy does not use ranks) It will be added to Billy's inventory. The ammunition for this weapon is unlocked by getting an E Rank in Leech Hunter (collecting 0-29 leeches). The ammunition will be scattered throughout the game after doing so. Infinite ammunition can be unlocked by getting a A Rank (finding all 100 Leech Charms).
The Sub-Machinegun takes up 2 spaces of inventory. Its ammunition is shown in a percentage starting at 100% when full and going down to 0% which is empty. Firing 3 bullets lowers the percentage by 1%.
Unique to this weapon, when the fire button is held and the character is shooting bullets, the player can then aim the weapon left and right to a certain degree (allowing the player to fire "sweeps" of bullets across the area). This can be done in all aiming positions; leveled, downward, and upward.
This weapon is aimed from the hip. Its stopping power combined with barrage of bullets can prevent a zombie from approaching as well as killing them.
The weapon itself can be found during Leech Hunter. It only appears during the pattern that includes two green herbs in the main hall. It will be found in the room full of Eliminators with 100% ammunition.
- Examine: Sub-Machinegun
"A small sub-machinegun. It uses its own type of ammo magazine."
Only seven magazines for the Sub-Machinegun can be found in the game, one of which being in Rebecca's inventory at the beginning of the game.
- 1F: Hall (34%)
- B1: Monitor room (17%)
None can be found here.
- 1F: Panel room (34%)
- B9: Service entrance (34%)