This is an updated version of >>37271. I don’t have the time to tag all these ponies and guns so I just copied tags from the older image. If you can, please help with tagging this monster of a picture.
 
Original description:  
Revamp to reduce size.  
Guns and ponies aren’t to scale.  
Bold names are squad leaders.
 
Nightmare Moon: Ares Shrike  
Princess Cadence: H&K XM8  
Discord: Colt Thompson  
Princess Celestia: GE M134 Minigun  
Princess Luna: Barrett M82A1  
Shining Armor: SIG SG750  
Queen Chrysalis: Kalashnikov RPK  
King Sombra: AeroPrecision AR-57 PDW
 
Rainbow Dash: Kalashnikov AKM  
Tank: ENARM SMG  
Applejack: Colt M16A4  
Winona: Steyr TMP  
Fluttershy: Ingram MAC-10  
Angel: H&K MP5K  
Twilight Sparkle: H&K MP7  
Owloysius: Walther P88  
Spike: Beretta 93 Raffica  
Rarity: H&K MP5SD  
Opalescence: SITES Spectre M4  
Pinkie Pie: Beretta 92FS and Tactical Knife  
Gummy: Winchester Lupara
 
Svengallop: Franchi LF-57  
Coloratura: AAC Honey Badger  
Trenderhoof: CAA AK-Alfa  
Wind Glider: SIG ARX200  
Treehugger: Fostech Origin-12  
Glim Glam: Makarov PM  
Sunset Shimmer: Ingram MAC-11  
Sugar Belle: DRDO MCIWS  
Double Diamond: SIG AK53  
Night Glider: Springfield M1A Socom 16 CQB  
Party Favor: ST Kinetics BMCR  
Moondancer: MKEK MPT  
Spoiled Rich: Hatsan Escort Rider
 
Torch Song: Steinkamp SW1  
Toe-Tapper: Wróblewski PMM  
Silver Shill: DRD Paratus  
Randolph: Daewoo K1A1  
Seabreeze: OOW HCAR  
Roma: Ruger AC556K  
Flash Sentry: DTD MDR  
Stellar Eclipse: Ares SCR  
Suri Polomare: Sarsilmaz SAR 109  
Coco Pommel: Izhmash PP-19-01 Vityaz  
Prim Hemline: Mehmecik MPT-76  
Cheese Sandwich: Star Model B and Katana  
Maud Pie: DD Liberator
 
Flitter: CZ-UB Skorpion EVO III  
Cloudchaser: Beretta ARX-160  
Bon Bon: IMI Uzi  
Lyra: Steyr AUG  
Aloe: H&K G36K  
Lotus: H&K UMP45  
Vinyl Scratch: FN P90  
Octavia: Accuracy International Arctic Warfare  
Derpy: MPS AA-12  
Dr. Whooves: MA5B ICWS  
The Great and Powerful Trixie: Dual CZ-UB Skorpion vz. 61  
Mr. Cake: Dragunov SVD  
Mrs. Cake: FN F2000
 
Big Macintosh: Saco Defense M60  
Granny Smith: Winchester Model 1887  
Braeburn: Armsel Striker  
Apple Strudel: Mosin-Nagant Model 1891/30  
Zecora: AAI LSAT  
Marble Pie: Khaybar KH2002  
Limestone Pie: ST Kinetics SR88  
Caramel: IMI Desert Eagle  
Silver Speed: UTAS UTS-15  
Twilight Sky: H&K XM29 OICW  
Wild Fire: Fabryka Broni MSBS Grot (aka Łucznik Radon)  
Lucky: VB Berapi LP06  
Spectrum: KBP Instrument Design Bureau VSSK Vychlop
 
Snails: KBP Instrument Design Bureau PP93  
Snips: KBP Instrument Design Bureau PP2000  
Truffle Shuffle: IMI Uzi Pro  
Half Note: CZ-UB 75 AUTO  
Lickety Split: H&K VP70  
Rumble: Claridge Hi-Tec  
Featherweight: Colt SCAMP  
Button Mash: VB Berapi LP01  
Apple Bloom: Glock 18  
Sweetie Belle: Bazalt RPG-7  
Scootaloo: IMI Micro-Uzi  
Babs Seed: Gepard SMG  
Twist: Łucznik PM-98  
Noi: TAP SR-2 Veresk
 
Berry Pinch: Grot CH-9/25  
Alula: Silver Shadow Gilboa Shorty  
Pipsqueak: H&K 69  
Bloo: Benelli CB-M2  
Cotton Cloudy: IMDEP Lusa  
Dinky Doo: DRDO MSMC  
Strike: KB-ST Goblin  
Apple Bytes: Taurus MT-9 G2  
Honey Drops: Floro MK-9  
Lemon Daze: Saab Bofors Dynamics CBJ-MS  
Diamond Tiara: KMZ AEK-919K Kashtan  
Silver Spoon: Walther MPL  
Peachy Pie: Franchi SPAS-15  
Pina Colada: Daewoo K7
 
Soarin’: JIC QCW-05  
Berry Punch: Z-M LR-300  
Cheerilee: Franchi SPAS-12  
Spitfire: Kalashnikov AK-103  
Golden Harvest: Springfield M14 Carbine SWS  
Dizzy Twister: Desert Tactical Arms Stealth Recon Scout  
Hayseed Turnip Truck: Norinco QBU-88  
Millie: Remington ACR  
Mayor: Mossberg 500  
Minuette: KRISS Vector  
Sunset Bliss: Steyr ACR  
Pink Lady: Magpul ACR  
Diamond Mint: Pancor Jackhammer  
Junebug: FAMAS
 
Jet Set: IMI TAR-21  
Upper Crust: B+T APC  
Lyrica: Benelli M4 Super 90  
Herald: Interdynamic MKR  
Jangles: DSTO AICW  
Prince Blueblood: Fabbri Over-Under  
Hoity Toity: Walther PPK  
Fancypants: Magpul PDR  
Fleur: FN Five Seven  
Sapphire Shores: Benelli MR1  
Filthy Rich: KBP Instrument Design Bureau PP90M1  
Caesar: Ruger Mini-14  
Royal Ribbon: FAVS Stradivari
 
Photo Finish: H&K 417  
Horte Cuisine: Dual Patria Mod.2  
High Style: TTX 80.002  
Powder Rouge: Valtro PM-5  
Pretty Vision: High Standard HS-10  
Regal Candent: Dual Trejo Pistol  
Roxie: TsKIB-SOO OTs-23 Drotik  
Soigne Folio: SIMA MGP-84  
Midnight Fun: Silver Shadow Gilboa APR  
Stella: TAP SR-3 Vikhr  
Royal Riff: Arsenal Shipka  
Luke: Orbis MGV-176  
Star Hunter: Interdynamic MKS
 
Merry May: Metal Storm MAUL  
Heart Throb: Bushmaster ACR  
Lightning Bolt: KBP Instrument Design Bureau PP91 KEDR  
April Showers: SIMA FAD  
Peppermint Crunch: Walther WA2000  
Blossomforth: Kel-Tec RFB  
Raindrops: H&K G11  
Dumb-Bell: ENARM Pentagun  
Hoops: Kel-Tec KSG-12  
Score: Izhmash Saiga-12  
Epona: Dual Colt Anaconda  
Holly Dash: Beretta M12  
Thunderlane: Chang Feng CF-05
 
Iron Will: GD LWMMG  
Bulk Biceps: Beretta AS70  
Gustave: MFWI EMERK  
Gilda: H&K MP5  
Cranky Doodle Donkey: KB Shar TVGK  
Matilda: RATMIL M96  
Mulia Mild: VB Berapi LP02  
Spot: Techno Arms MAG-7 Shotgun  
Fido: Calico M960  
Rover: VBR-Belgium PDW  
Little Strongheart: Izhmash Grad  
Chief Thunderhooves: GIAT PAPOP
 
Cherry Jubilee: ARES PGM Mini-Hecate  
Roseluck: FN SCAR-L  
Lily: IMI MTAR-21  
Daisy: H&K PSG-1  
Shoeshine: Colt M4 Carbine  
Sea Swirl: H&K FABARM FP6  
Lemon Hearts: Kalashnikov AK74u  
Bluenote: Dual Magpul FMG9  
Glory: Truvelo Raptor  
Tropical Spring: TsNIITochMash VSS Vintorez  
Cherry Berry: SRM Model 1216  
Amethyst Star: Norinco QBZ-95  
Twinkleshine: Beretta MX4
 
Doc Top: Agram 2000  
Mane Goodall: BAE SA80  
Nurse Tenderheart: Serbu SUPER-SHORTY  
Nurse Redheart: FN FAL  
Nurse Sweetheart: IMI Galil  
Nurse Coldheart: Intratec TEC-9  
Nursery Rhyme: TAO Jatimatic  
Doctor Horse: ORSIS T-5000  
Screw Loose: USACWF M2A1-7 Flamethrower  
Screwball: Remington XM2010 ESR  
Flim: Robinson Arms XCR-L  
Flam: SIG STR970  
Donut Joe: Daewoo USAS-12
 
Night Light: Mekanika Uru  
Twilight Velvet: RSASS  
Cloudy Quartz: Colt ACR  
Igneous Rock: STAR Z-84  
Magnum: AAI ACR  
Pearl: TA Saritch 308  
Bow Hothoof: KBP Instrument Design Bureau RMB-93  
Jeff Letroski: Diseños Casanave SC-2005  
Jesús Pezuña: TsKIB-SOO OTs-33 Pernach  
Theodore Donald Kerabatsos: Vektor CR-21  
Walter Coltchak: Korobov TKB-022  
Allie Way: Colt GUU-4/P  
Ace: Astra 903
 
Apple Bumpkin: Zlatoust RB-12  
Apple Cider: TsNIITochMash Vlasov  
Apple Cobbler: TsNIITochMash KS23K  
Apple Fritter: TsNIITochMash Kovrov  
Apple Tarty: Dragunov SVU  
Aunt Orange: Crye MR-C  
Uncle Orange: TsKIB-SOO OTs-39  
Buttercream: TsKIB-SOO OTs-22 Buk  
Red Delicious: Vahan VAHAN  
Golden Delicious: Smith Mk.14 Mod.0 EBR  
Red Gala: Floro PDW  
Caramel Apple: TsKIB-SOO OTs-02 Kiparis  
Orange Wafer: Minebea PM-9
 
Unicorn Royal Guard: TAM G5C  
Pegasus Royal Guard: ST Kinetics Ultimax 100 MK8  
Earth Royal Guard: Colt C8 IUR-C  
Luna Pegasus Guard: Ruger SR-556  
Unicorn Palace Guard: RAAC Akdal MKA-1919  
Commander Hurricane Guard: Colt CM901  
Changeling: UDMC PVAR  
Concerto: Barrett REC-7  
Frederic Horseshoepin: Remington GPC  
Harpo Parish Nadermane: KAC SR-25  
Vance Van Vendington: Colt CQBR  
Snappy Scoop: KAC SR-47  
Film Reel: FERFRANS SOAR
 
Turf: Norinco Type 56  
Surf: Zatsava M21  
Berry Frost: INSAS KALANTAK  
Candy Mane: TsKIB-SOO OTs-11 Tiss  
Clip Clop: Łucznik Kbk wz. 1996 Mini-Beryl  
Davenport: Izhmash AK-12  
Crafty Crate: KMZ AEK-971  
Helia: Łucznik Kbk wz. 2005 Jantar  
Milky Way: Izhmash AN-94  
Fuzzy Slippers: Arsenal Vepr  
Mr. Zappy: Łucznik Skbk wz. 1989 Onyks  
Symphony: Łucznik Kbk wz. 2002 BIN  
Yooess Dee: TsKIB-SOO OC-14-4A Groza
 
Sharpener: Ruger MP-9  
Noteworthy: Ithaca 37 Stakeout  
Steamer: Norinco Type 64  
Oakey Doke: CZ-UB 805 BREN  
Post Haste: Truvelo Neostead  
Ms. Peachbottom: Norinco SKS  
Ms. Harshwhinny: McMillan CS5  
Hugh Jelly: Arsenal Strike One Strizh  
Karat: CZ-UB 700  
Pink Cloud: Kel-Tec PLR-16  
Mr. Breezy: FAMAE Mini-SAF  
Money Shot: VBR-Belgium CSMG  
Tracy Flash: ST Kinetics CPW
 
Daring Do: Hsari LW-3 Automatic Shotgun  
Lightning Dust: SIG MPX  
Crescendo: SIG SG550  
Midnight Strike: Colt Carbon 15  
Honey Comb: Kel-Tec SUB2000  
Rose Quartz: KBP Instrument Design Bureau OTs-53  
Dandy Brush: Safir T-17  
Honey Tone: KMZ AEK-918G  
Golden Glitter: Tuma MTE 224 VA  
Gizmo: Parker Hale PDW  
Pizzelle: Waffen Liemke DB-10  
Uncle Wing: Danuvia VD-01  
Bill Neigh: Gerasimenko VAG-73
 
Daisy Jo: MA CAR  
Steven Magnet: POF P300  
Cloud Kicker: CSH CornerShot  
Crackle: SIG MCX  
Dragon Lord Torch: Mateba Autorevolver  
Princess Ember: Kalashnikov SVK  
Garble: Black Rain Ordinance Recon  
Fizzle: Angstadt Arms PDW  
Giselle: Voere American-180  
Gabby: Beretta LTLX7000  
Prince Rutherford: Degtyaryov DP28  
Maneiac: Norinco QBB95