" You can combine this item with others to make various sub-weapons."
Empty Bottle is a combine item in Resident Evil: Revelations 2.
The empty bottle can be used to create different sub-weapons by combining it with different materials:
|Exploding Bottle||+ Gun Powder|
|Firebomb Bottle||+ Alcohol|
|Decoy Bottle||+ Odorous Chemical|
|Smokescreen Bottle||+ Smoke Powder|
- Tada, Takuji, ed (2015). BIOHAZARD REVELATIONS 2 ULTIMANIA. Square Enix.