Note. To the best of my knowledge this is not based on any existing Fallout Equestria storyline, nor does it follow any particular plot in Fallout 4. This is just the narrative that popped into my head as I was drawing.
 
Boom! Kachunk! Boom! Kachunk! Boom! Kachunk!
 
Maud pumped 3 rounds of 00 buckshot at the raiders that had come sprinting around the corner of the dilapidated 2 story brownstone. One round of 00 found its mark. The cobbled together double barrel shotgun flew from the stallion’s hands as he toppled forward and slid to a stop on his face. The remaining raider bolted back the way they’d come from with equal speed.
 
Maud took off in the opposite direction. She was covering the backs of her two sisters Marble and Limestone as they attempted to shake a band of raiders that had attacked them as they returned from the Spring Fair.  

 
As she ran she methodically started feeding more 12ga shells into her shotgun. A quick tactile check of the cartridge belt around her waist, the side saddle on her gun, and her cartridge loops on her vest told her she was starting to run low on shells. They needed to lose these raiders once and for all.
 
The earth pony considered that problem as she sprinted among the numerous carcasses of burned out vehicles that littered the abandoned street. These raiders were very unusual. The normal MO of raiders was to ambush their prey and if they met stiff resistance to retreat and look for weaker prey. If they took heavy losses or if a pursuit went on too long they’d give up.
 
Apparently these raiders never got that memo. They’d been seriously blooded by the 3 sisters defense and counterattack losing over a third of their numbers. Then they’d continued to pursue them as they headed back to the Pie family homestead. Losing more of their numbers along the way. Even luring their pursuers into another raiders territory had failed shake them.
 
Maud knew these were still the original raiders was because they all wore uniform symbol on their clothing or kit. All of them had a shirt or some article on them that was deep blue and black with a white crescent moon on it. Rarely did raiders strive for any form unified appearance.
 
The sound of a bullet ricocheting nearby told Maud that their pursuers hadn’t given up on their prey. Even though there was only at 4 of original 24 left to her knowledge. Although Maud hoped they weren’t being corralled into an ambush further ahead.
 
A few minutes later Maud caught up with her sisters. Limestone and Marble had stopped to catch their breath and assess the situation. They’d taken shelter next to the demolished remains of a bus. Limestone kept watch while Marble sat on the ground panting as she reloaded rifle magazines. Her hands were shaking slightly from the continuous exertion and fear. Limestone sighed as Maud joined her.
 
“Did we finally loses the bastards?” Limestone muttered softly.
 
Maud slowly shook her head. “Unfortunately no. There’s at least 4 of them left. They are abnormally persistent in their pursuit.” She glanced over at Marble. “Marble. Are you going to be able to keep moving?”
 
Marble finished loading her last empty magazine. She stowed it in its pouch then looked up at her sister.
 
“Mhmm.”
 
Limestone cursed under her breath. “We’re less than 3 miles away from the homestead, but I don’t want to have these pieces of shits following us all the way back home!” She did a quick status check of her available ammunition. “I’ve 2 full mags for my rifle. And 3 full mags for my pistol.”
 
The silver-gray maned mare looked her sister up and down. “You’re running low on shells.” She glanced over at Marble who was drinking from her canteen. “Marble got 4 full magazines for her rifle, but the wipes on its suppressor are almost gone. So she’s not going to be very stealthy soon. Gonna have to rebuild that thing when we get back home!”
 
Maud looked around at the immediate surroundings. “Maybe we should set our own am–”
 
Suddenly 6 shots echoed out amongst the ruins. The 3 mares ducked and took cover. After several seconds the sound of a single pair of hooves could be heard approaching. The sound crunching gravel and debris grew louder then stopped. Then familiar voice called out.
 
“Woo! What mess! These are some of the ugliest ponies eeevvveeerrr! Hey Maud! You 3 alright?”
 
Sauntering into view was the final Pie sister. Pinkie’s thigh-high leather boots stirred up small clouds of dust as she walked up. “Took care of 4 reaaalllyy nasty ponies back there.” The pink mare tilted her head back the way she’d came. Her curly, deep rose mane bobbed as she did this.
 
Limestone sighed. “Thanks Pinkie. They’ve been chasing us all day! We didn’t want to bring home any unwanted guests.”
 
Pinkie sauntered over and hopped up in the remains of a window bay. From her a well-worn shoulder holster she removed a large 41 magnum revolver. Decades before somepony had customized handgun. The hammer had been bobbed, the barrel shortened and the front sight reattached, the grip frame had been rounded, and the front part of the trigger guard had been cutaway. The work was not slapdash. Most likely it had been their favorite pistol. However most of the finish had worn off long ago and the wooden grips had darken from years of oil, sweat, and use.
 
Popping the cylinder open Pinkie worked the star ejector with one hand. The spent magnum cartridges fell from the cylinder. As she did this she removed a speedloader from one of the many pouches that festooned her belt. In one smooth motion she slid 6 cartridges into the cylinder. Releasing the loader. Then she closed the cylinder on the revolver. She grinned at her sisters.
 
“Yeah they weren’t the kind of ponies you invite to a party!”
 
The mare put the revolver back in the holster. Then she looked back at her sisters and smiled.
 
“So I removed them from the guest list.”