Install using MO2 or manually by copying all contents of the included Data folder into your Fallout 3 Data folder.

Original custom model and mod by gunnars2, tweaks and adjustments as well as adding it to the leveled lists done by AirChomp.

Find a free .32 Machine Pistol in Big Red's Clinic in Big Town while in the DC area.

Set the plugin to load near the end of the load order if using a mod manager, or use a load order optimizer. Lastly, enjoy!