Equestria meets R.J. Macready

In a distant future, It had been years since MacReady and Blake had came in the land of Equestria and stopped the Thing and it's mutations. As a now grey bearded MacReady was seen in the School with a now older, bearded Blake, the two were made the schools bodyguards and eventually teachers should the creature ever attack, which it did, but failed and was presumably wiped out when Twilight used the immune cells in Blake and MacReady to make a vaccine along with using the blood tester. The Thing, despite being gone, its fate was left unknown.

The two had begun to start their new lives, although both were paranoid the creature would return, they both would always be ready with their new friends and family. The two even joined the Elite rank of Twilight's royal guard and MacReady was now a Captain, while Blake became a Colonel. To better increase the soldiers training and expertise, the two humans trained them each in warfare for every terrain such as jungles, snows, deserts and CQC (Along with surprisingly Spike, as Blake thought he needed to get more exercise and had to defend himself. Not to mention, bonding with him more during a friendship mission Spike had). As life had began to continue, MacReady looked aged and older, but more fit.

"Man. you look old" a voice said

MacReady turned around and saw Blake, now with a beard similar to MacReady's, as MacReady gave an annoyed look and said

"Screw you too."

"Dude come on, you look like fucking Ego from Guardians of the Galaxy."

"No shit, now come on, we got work to do"

The two walked out and as they were walking they saw an now aged up harmonic Twilight Sparkle in the same appearance as her mentor Celestia and a now buffer and older Spike.

"Well, who do we have here?." Twilight asked in an amusing tone of sarcasm as she stood on her throne with a now older Spike

"Hey pops!" Spike said to Blake

Prior to the day the Thing was killed, Blake had chosen to adopt Spike after the two bonded during a friendship mission, as Spike told Blake about himself and bonded with him. Blake decided to adopt him as his son and despite Twilight's jealousy, she eventually respected Spike's wishes and consented with tears. As he spent time with Twilight and her family, he softened to them and even bonded with Flurry Heart, this made him realize that in spite of not being able to return home, he wouldn't lose his own future.

"Hello son!, how's your training?" Blake said, with Twilight give a smile of dismay.

"It was great, MacReady even taught me a few new tricks!"

"Good, did you do ALL the training?" Blake asked

"Yes dad" Spike said

"ALL OF IT?"

"Yes dad, in fact 3 of the guards hurt their hooves trying to hit me."

Blake, with a look of recollection, nodded and turned to Twilight and said

"So, what's the memo?"

"Well, my student here thought friendship was a waste" Twilight said pointing to the unicorn behind them.

"Well, friendship looks more like a distraction then anything else and ultimately us a waste of time."

"What?!" Spike said

"Some friendships take time and have to develop and there are complications, they can be messy and never go how you plan, I realized that it took time to navigate and might not last forever.

"Yeah, I mean take me and MacReady for instance" Blake added

"You two?" Luster Dawn said

"Yeah kid, we both initially in a way acted like hostile because of a specific THING but we realize that we shouldn't let that get in the way of our friendship."

"Not to mention that our friendship was messy, and not in the metaphorical way either," MacReady said, causing Twilght and Spike to giggle.

"How so?"

Blake gave a hesitant look but complied and said "Well..."

(Flashback)

It was in the Antarctic and a much younger looking Blake was seen infiltrating the outpost in the cold with a two more soldiers, Carter and Cruz, who were found when Blake was sent to find out what happened to Alpha Team in the area as they were searching, they found a building and hid while killing some of the creatures.

"Fuck, they're everywhere!" Carter said as he killed a few Scuttlers

"What the fuck are they?!" Cruz said while shooting

"Keep shooting!" Blake said while firing his SMG.

Eventually, the area was cleared for now and the three fought their way to Captain Pierce, who was hidden in the supply depot. Who ordered Blake to get blood test hypo and he did and the moment the blood test was done, Cruz and Carter had turned and attacked.

"SHOOT!, SHOOT!" Pierce shouted while firing at the now assimilated soldiers.

(Flashback stop)

"Wait, but how does this involve MacReady?" Luster Dawn said

"I'm getting there." Blake said

(Flashback continued to final boss)

"Keep shooting!" the pilot said as Blake continued to fire the current at the barrels near Whitley-thing.

The creature was finally killed as it was lit aflame from the explosive barrels near its massive form and Blake then asked " Who are you?"

The pilot answered "Name's MacReady" as the chopper left and flew away from the outpost

(Flashback end)

"After that, we managed to stop whoever was willing to capture and use the creature for experiments."

Luster Dawn said "Why?"

"Because if that Thing got out loose and hurt anyone, it would not just be our faults, it would also destroy the ENTIRE planet. Me and him bonded after we realixed that even though we didnt knkw each other, we still had to stop it and we were basically the heroes of the story." MacReady added

"Wow" Luster Dawn said

Just then the girls came in the room.

"Hey, Twilight, hey Spike" They all said, ready to start their futures as the screen cuts black as MacReady and Blake joined