Dead Rising Deluxe Remaster

From mission 1 if you leave the safe room go to the set of stairs by the blue awning jump to the awning and walk all the way across for a sub machine gun #1/3 follow the back up for Brad marker to the food court. Once done with that the chef where Brad was taking cover has sub machine gun #2/3 if you jump up on it. Follow Brad further through al Fresca and before entering entrance Plaza there will be a fountain with #3/3 sub machine gun. 100 bullets each just shoot them and you've got it. They also respawn when depleted so keep locations in mind

From mission 1 if you leave the safe room go to the set of stairs by the blue awning jump to the awning and walk all the way across for a sub machine gun #1/3 follow the back up for Brad marker to the food court. Once done with that the chef where Brad was taking cover has sub machine gun #2/3 if you jump up on it. Follow Brad further through al Fresca and before entering entrance Plaza there will be a fountain with #3/3 sub machine gun. 100 bullets each just shoot them and you've got it. They also respawn when depleted so keep locations in mind