Here's the list of stuff specifically tagged MC; this doesn't include the giant list of generics.
Bellona Hover Tank (Laser), (Standard)
Blizzard Hover Transport "Black Blizzard", (SRM), (Standard)
Danai Support vehicle (Standard)
Demolisher Heavy Tank (Arrow IV)
Heavy MML Carrier (Standard)
Hetzer Wheeled Assault Gun (LB-X)
Maultier Hover APC (Standard)
Partisan Heavy Tank (AC2), (LRM), (Standard)
Pike Support Vehicle (AC5), (Missile), (RAC) "Assault Pike"
Po II (Arrow IV), (Standard)
Regulator Hovertank (Arrow IV), (RAC), (Standard)
Tamerlane Strike Sled 2, (Flamer), (RL), (Standard)
Tufana Hovercraft (iNarc), (Standard)
Vedette Medium Tank (LB-X), (Ultra)
Zhukov Heavy Tank (LB-X), (Liao)
ASN-23 Assassin
AS7-K, AS7-S Atlas
AWS-9M Awesome
BNDR-01A, BNDR-01Ar, BNDR-01B Bandersnatch
BNC-3M, BNC-3MC, BNC-3Mr Banshee
BJ2-O, BJ2-OA, BJ2-OB, BJ2-OC, BJ2-OD, BJ2-OF, BJ2-OU Blackjack
BCN-5W Buccaneer
CTF-3L Cataphract
CPLT-C3, CPLT-C4, CPLT-C5, CPLT-C5A Catapult
CRD-8L Crusader
CP-11-A, CP-11-G Cyclops
DVS-2 Devastator
D9-G9 Duan Gung
EGL-2M Eagle
MEB-9, MEB-10, MEB-11 Ebony
EMP-6A Emperor
EYL-45A, EYL-45B Eyleuka
GLT-7-0, GLT-8-0 Gallant
GAL-1GLS, GAL-2GLS, GAL-2GLSA Gallowglas
T-IT-N10M Grand Titan
GRF-5L Griffin
GLT-5M Guillotine
HMR-3M Hammer
HEL-3D Helios
HER-5S, HER-5Sr Hermes II
HBK-5H, HBK-5M, HBK-5N Hunchback
HUR-WO-R4L Huron Warrior
JA-KL-1532 Jackal
JR7-K Jenner
JN-G8A Jinggau
KSC-3I, KSC-5I, KSC-5MC, KSC-5X Koschei
LCT-5V Locust
LGB-12C Longbow
MAD-5L, MAD-6L Marauder
MHL-2L, MHL-6MC Marshal
MS1-O, MS1-OA, MS1-OB, MS1-OC, MS1-OD Men Shen
ON1-M Orion
OSR-4C, OSR-4L Ostroc
PXH-4L, PXH-4W, PXH-5L Phoenix Hawk
PLG-1N, PLG-3Z Pillager
QKD-5M Quickdraw
RTX1-O, RTX1-OB, RTX1-OC, RTX1-OD, RTX1-OE, RTX1-OF, RTX1-OR, RTX1-OU Raptor
RVN-3L Raven
SHD-7M, SHD-8L Shadow Hawk
SNK-1V Snake
STK-5M Stalker
STY-3C, STY-3D, STY-3Dr Starslayer
STG-3G, STG-6L Stinger
STC-2C Striker
ZPH-1 Tarantula
THR-1L Thunder
TSG-9H, TSG-9J Ti Ts'ang
VND-1R, VND-3L, VND-3Lr, VND-4L, VND-5L Vindicator
WR-DG-02FC War Dog
WHM-5L Warhammer
Warhammer IIC 9
WSP-3L, WSP-7MAF, WSP-8T Wasp
WTC-4M Watchman
WLF-1 Wolfhound
TR1, TR2 Wraith
Y-H9G Yu Huang
D-M3D-3, D-M3D-4 Diomede
AM-PRM-RH7, AM-PRM-RH7A "Rock Otter", AM-PRM-RH7C "Rock Possum" Rock Hound
AM-PRM-SH1 Space Hound
MSF-42 Bluehawk Combat Support Fighter
MNG-8L Mengqin
Assault Commando (Ebon Magistrate Shock Troops)
Space Marines (Com Guards Warship Fleet Marine)
SpecOps Paratrooper (MI6 Extraction Team)
TAG Spotter Infantry (Stalwart Support-Spotter Infantry)
Xenoplanetary Infantry (Eagle Corps Eyrie Defense Force)
AA Jump Infantry (292nd League Regulars, Gryphons)
Commando (Battlefield Infiltration Units)
Heavy Jump Infantry (Royal Gurkha Battalion, 4th Regulan Hussars)
Submersible Mechanized Infantry (Kraken Unleashed-The Mermen)
Anti-Infantry Unit (2nd Lyran AI, 32nd Lyran Guards)
Firefighter (24th Hellfire Fire Fighting Battalion, 84th Avalon LI, 17th Avalon Hussars)
Heavy Infantry (Heavy Urban Response Platoon, 608th Lyran MTR, 3rd Lyran Guards)
Heavy Support Infantry (Irian Technologies SWAT Team)
Motorized XCT infantry (Explorer Corps Hostile Environment Recon Units)
VTOL Infantry (Hachiman Taro Enterprise Extraction Force)
Yeah, it's kinda big, but I tried to shorten it up some. Anyway...there's some interesting things. The aforementioned artillery saturation, including the AIV Catapult. Some nasty infantry, and a curious bit of Wolf's Dragoons hardware acquired after they get vaporized. One wonders if there's a unit that went that way, or just how it ended up there. Oh and that curious little IIC in there...that's the twin-CRAC-5(!!!!!!) and Clan LRM-10 version, with an ECM pack, 2 ERML, 2 ERSL, enough ammo to make the gunload workable, enough heat sinks to be an alpha-baby and still make slurpees, and unlike a certain Davion twin-RAC machine more rear armor than anything starting with R-I-F or J-A-G. Crits for the crit god, headcaps for the skull throne?