Sorry. But there is hope.

Hello I am ppg1998. When I first made this. I wasn't thinking straight. I was so focused on the matching of characters that I completely forgot the actual story and just made it a copy of the orginal. I admit I wasn't going to do anything did other then some added on dialogue and a few small differences. But I think there are some people who could come up with some stuff better then me. This concept is still cool it's just not for me. But thanks to my research I think I made the perfect list for match for every character from red vs blue to be matched up by someone in MLP. If your making a story on this concept let me know. So here is the perfect match list in my opinion.

Church = Twilight Sparkle
Tucker = Rainbow Dash
Caboose = Derpy
Doc = Fluttershy
Sarge = Applejack
Griff = Vinyl Scratch
Simmons = Octavia
Donut = Pinkie Pie
Lopez = Rarity
Tex = Luna
Carolina = Sunset Shimmer
Washington = Trixie Lunamoon
The Meta= King sombra
Director = Celestia
Counselor = Prince BlueBlood
Chairman = Spoiled Rich
Felix = Lightning Dust
Locus = Starlight Glimmer
North = Soarin
South = Spitfire
Wyoming = Doctor whooves
York = Daring Do
Florida = Minuette
479 = Night Glider
(Season 9/10)CT = Sonata Dusk
Palomo = Scootalo
Jensen = Twist
Bitters = Sweetie Bell
Smith = Applebloom
Kimball = Princess Cadence
General Doyle = Fancy Pants
Dr. Grey = Nurse Red Heart
Shela or fillis = Cheerily
Shark face = Gilda
Leader of resistance/(season 7)CT = Adagio Dazzle
Big Musclely resistance guy = Big Mac
Resistance sniper = Photo Finish
Machete resistance girl = Aria Blaze
Resistance shotgun robot arm guy = Braeburn
Resistance Mini gun guys = Lyra and Bonbon
Freckles = Maud Pie
Griff's sister = Lemon Zest
O'Mally = Nightmare Moon
Sigma = Queen chrysalis
A.I. Twins = flim flam brothers
Delta = Sugar Coat
Theta = pipsqueak
Gamma or Gary = Mayor Mare
Andy the bomb = Garble
Santa A.I. = Zecora

Author's Note

For those who are sad I'm sorry but I don't think I should be the person to write this.
But I think I did a excellent job on the pairing list. Let me know what you think?