There are three different kinds of rounds. Machine Gun. The Machine Gun's “Bouncing Bullets” upgrade, which causes the bullets to ricochet once off any solid surface, could, hypothetically, be useful when faced against a crowd of Splicers in an enclosed area. Though some of the guns function differently in BioShock 2, many tend to be pretty similar. The Rivet Gun is a weapon that appears in BioShock, BioShock 2, and BioShock 2 Multiplayer. It is a formidable weapon, capable of delivering large Rivets with great accuracy. For BioShock 2 on the PlayStation 3, a GameFAQs message board topic titled "Weapon upgrade question? Find out what the best weapons are and how they can be upgraded in this detailed guide to the weaponry of Bioshock 2. All the weapons in Bioshock 2 are listed here along with information on their ammunition types and their potential upgrades. The bullets could ricochet off the walls and hit the Splicers in their back. ". This weapon is more effective in dealing damage to multiple enemies at once rather than getting headshots, but that does not necessarily make it the best go-to gun for exploring. If you enjoyed leave a like and/or subscribe. Funny though, we are exact opposites, because like I said I found machine gun way more usable in BS1. There are some notable omissions, however. thanks! We start off with the Drill, Rivet Gun, Gatling Gun and have a … Call of the Dead - MAJOR EASTER EGG COMPLETED - Co-op Achievement Ensemble Cast Guide / Walkthrough - Duration: 8:44. .50 Caliber Rounds are the ammunition used by the Machine Gun in BioShock 2. Add an image to this gallery Although it can dish out a good amount of damage (particularly with armor-piercing rounds) but it's not the greatest against single enemies. Certain Alpha Series such as Subject Delta and Subject Sigma use a prototype of the Rivet Gun, which functions similarly to Jack's Pistol as the basic ranged weapon.