The LSR44 provides a unique hybrid of carbine and sniper rifle. It's firing mechanism uses an electronic, rail-based technology. The design features open rails to vent built-up plasma to prevent damage to the firing system due to heat. In the campaign, the default firing mode on the LSR44 is fully-automatic. In multiplayer -- where it can only be equipped by the Scout class -- it is locked into a 3-round burst-fire mode. The railgun mode remains the same, though.
The alternate fire extends the gun to a shape that resembles a rail gun, and flips up an ACOG sight in place of the default Dot Laser. This firing mode has to be charged, and once fully charged it unleashes a devastating blast. A single shot in 'Sniper Mode' will drain half of the LSR44's twenty-four round magazine. The LSR44 is an extremely versatile weapon in both Shadowfall's campaign as well as its multiplayer, as the LSR44 can transform from a formidable close-quarters machine-gun into a powerful sniper-rifle in a matter of seconds.
The LSR44 is a very strong weapon, despite having no other attachments.
Note:you are not equiped with this weapon in chapter 6:The Agent because you have lost it in chapter 5.