Machine Buster
From BioShock Wiki
Machine Buster is a combat tonic that makes bots, cameras, turrets easier to destroy. It can be used in conjunction with Machine Buster 2.
Game Caption
(Downloaded) Increases DAMAGE you deal to CAMERAS, BOTS, and TURRETS.
In today's automated enviroment, you may find yourself up against hostiles not made of flesh and blood. Machine Buster gives you the edge you've been looking for against metal-plated antagonists.
Location
NOTE: This tonic only available if you have the 1.1 patch downloaded.
