Just checking my math here, are you counting the Icarus astronauts and the two zombie sets that have different figure amounts as two sets? I think I counted my list as 109 sets but didn't separate the figure difference sets.
Nope. I do maintain a list of my own, and the sets that changed numbers of figures and/or stock codes are just notes, not their own lines. I'm definitely showing 112 sets, including promotional figures. I'll break it down:
- Total 14 sets
06812 Mountain Recon (later DCL27), 06813 Drone Attack (later DCL26), 06815 Rib Beach Assault (later DCL25), 06816 Chopper Strike, 06817 Light Armor Firebase (later DCL23), 06818 Dome Battleground, 06820 Coastal Intercept, 06822 Heavy Armor Outpost, 06823 Alpine Rangers, 06824 SEAL Team (later CNF10), 06825 Desert Troopers, 06828 Zombies Tranzit Farm, 06881 Zombies Horde, 99694 Ghost (promo)
- Total 23 sets
06819 Attack Turret, 06827 Halftrack Ambush, 06829 Landing Craft Invasion, 06846 Desert Outpost (later DCL15), 06849 Zombies Outbreak (later CNF15), 06851 Juggernaut (later CNF08), 06852 Ghillie Suit Sniper (later CNF09), 06854 Sniper Unit (later CNF11), 06855 CLAW Assault (later DCL10), 06856 APC Invasion (later DCL09), 06857 Mob of the Dead (later DCL08), 06858 Ghosts Tactical Helicopter, 06859 Hovercraft, 06862 Platoon Patrol, 06863 Odin Space Station Strike, 06885 Ghosts Rappel Fighter (later DCL04), 06866 Motorbike Breakout, 06867 SAM Turret (later DCL02), 06872 Vulture Attack (later DCL00), 06875 Jungle Troopers (later CNF12), 06878 Nuketown (later CYR73), 06879 Arctic Invasion, 99707 Gold Astronaut (promo)
- Total 22 sets
06860 Brutus (later CNC66), 06868 Hazmat Zombies (later CNC70, then CNK31 with four figures), 06885 Icarus Troopers (later CNF13, then CNK27 with four figures), 06886 Covert Ops Unit (later CNF14, then CNK28 with four figures), CNC68 Atlas Troopers, CNG72 SEAL Specialist, CNG74 Rocket Turret, CNG75 UGV Drone, CNG76 Hoverbike Raid, CNG78 Desert Squad, CNG79 Zombies Moon Mob (later DMT52 with five figures), CNG80 SEAL Sub Recon, CNG84 Zombies Tranzit Diner, CNG85 Atlas Mobile Turret, CNG86 Strike Fighter, CNG87 Combat Vehicle Attack, CNG93 Infantry Battalion, CNG94 Sidecar Pursuit, CNG96 Battle Tank, CNG98 Nuketown II, CPC59 Silver Zombie (promo)
, CPC67 Legacy Heroes
- Total 22 sets
DKX53 Anti-Aircraft Vehicle, DKX54 Wraith Attack, DLB97 Jetpack Fighter, DLB98 Advanced Enforcer, DLB99 Horseback Assault, DLC00 Jungle Rangers, DLC01 Zombies Office Mob, DPB52 Recon Outpost, DPB53 Arctic Troopers, DPB54 Advanced Soldiers, DPB56 Riverboat Raid, DPB57 Armored Vehicle Charge, DPB59 Desert Tank, DPB60 Anti-Armor Helicopter, DPW83 Snowmobile Recon, DPW84 Rib Coastal Attack, DPW85 Zombies Nuketown, DPW86 Classic Infantry, DPW87 Air Strike Ace, DPW88 Black Black Ops Operator (promo), DWB25 Special Ops Task Force, FDV61 Capt. N. Reyes (promo)
- Total 31 sets (but note that 12 are individual "Heroes" figures)
DXB59 Jungle Paratrooper, DXB60 Assault Drone, DXB61 Night Ops Blackout Squad, DXB63 ATV Ground Recon, DYD74 Mercenary Outpost Armory, DYD75 Modern Infantry Armory, FDY62 Cpt. Price, FDY63 Jet Pilot, FDY64 Mine Specialist, FDY65 Arctic Sniper, FDY66 Combat Diver, FDY67 M Sgt. Frank Woods, FDY73 Anti-Tank Gun, FDY74 Surface Troops, FDY75 Flamethrower Shock Troops, FDY76 Arctic Recon Armory, FDY77 Infantry Scout Car, FDY78 Urban Assault Copter, FMG01 John "Soap" McTavish, FMG02 Yuri, FMG03 Fighter Ace, FMG04 Hazmat Tech, FMG05 Combat Medic, FMG06 Specialist "Outrider", FMG10 Dragonfire Drone Strike, FMG11 Jungle SATCOM Armory, FMG13 Legends: Winter Heroes, FMG14 Urban Strike Squad, FMG15 Legends: Allied Soldiers, FMG16 Legends: Checkpoint Charge, FPY19 Desert Air Defenders
14 + 23 + 22 + 22 + 31 = 112, so I'll leave it to you to figure out which you're missing. I should note that I figure year of release differently from Mega. They have the last 13 sets as being 2018 releases, but all were definitely in stores before January 1st. I also calculated the figure count by the maximums, so Zombie Moon Mob was five figures and Hazmat Zombies was six, for examples.
Edit: Some sets are not listed on this site, so I highlighted them in red.