So iv been working on a way to balance Age of Sigmar while keeping the spirit of the game alive. So you agree on total warscrolls and then use the following chart to see what the MAXIMUM number of models you can take in the warscroll you selected. The minimum number in the warscroll always supersedes the minimum listed here but it means the unit can't take any larger number of models than their minimum listed number. 

The formula that i used was 100/(Attacks*wounds+armor save (count down 6+ is a 1 and 4+ is a 3)+rend value+movement over 8) For lower than 6 warscrolls reduce the formula to 50/. Heroes are restricted to 3 per warscroll (every 3rd warscroll can be a hero). And monsters are restricted to 1 per 4 warscrolls (every 4th warscroll can be a monster). Monsters who are also Heroes and vice versa are restricted to 1 per 6 warscrolls. All feed back is welcome and any play test results would be great! 

Gors	33
Bestigors	16
Ungors	50
Ungor Raiders	33
Minotaurs with Axes	6
Minotaurs with GW	8
Centigors	10
Razorgors	4
Warhounds	20
Harpies	9
Chaos Spawns	1
Bretonnia
Knights Errant	11
Knights of the Realm	11
Questing Knights	7
Grail Knights	8
Pegasus Knights	4
Battle Pilgrims	33
Men-At-Arms	50
Peasant Bowman	33
Mounted Yeomen	11
Daemons of Chaos
Bloodletters	25
Bloodcrushers	5
Flesh Hounds	10
Plaguebearers	20
Plague Drones	3
Nurglings	5
Beasts of Nurgle	2
Pink Horrors	25
Exalted Flamers	2
Flamers of Tzeentch	8
Screamers	5
Burning Chariots	1
Daemonettes	20
Seekers	5
Fiends	3
Seeker Chariots	1
Exalted Seeker Chariots	1
Hellflayers	1
Furies	12
Dwarfs
Hammers	16
Ironbreakers pistols	16
Ironbreakers axe/hammers	20
Irondrakes drakeguns	16
Irondrakes trollhammer	12
Longbeards hammers	25
Longbeards axes	20
Dwarf warriors hammers	33
Dwarf Warriors axes	25
Miners	16
Quarrellers	25
Slayers	33
Thunderers	20
Gyrocopters	2
Gyrobombers	2
Dark Elves
Cold One Knights	9
Cold ONe Chariots	1
Black Ark Corsairs	20
Dreadspears	33
Bleakswords	33
Darkshards	20
Dark Riders	6
Black Guard	16
Shades	20
Harpies	9
Scourgerunner Chariot	1
Doomfire Warlocks	6
Sisters of Slaughter	33
Bloodwrack Medusa	3
Witch Elves	50
Executioners	20
The Empire
Demigryph Knights	3
Empire Knights Lance	11
Emprie Knigths Hammer	9
Reiksguard Knights	11
Crossbowmen	50
Handgunners	33
Archers	50
Greatswords	16
Pistoliers	9
Outriders	7
State Troops spears or swords	33
State Troops Halberd	25
Free Company	50
Flagellants	50
High Elves
Spearmen	33
Archers	33
Silver Helms	7
Ellyrian Reavers	6
Dragon Princes	9
Tiranoc Chariots	2
Great Eagles	4
Shadow Warriors	25
Sisters of Avelorn	33
Phoenix Guard	14
Swordmasters	16
White Lions	16
White Lion Chariots	1
Sea Guard	33
Skycutters	1
Lizardmen
Saurus Warriors	25
Temple Guard	14
Saurus Cavalry	10
Skinks	33
Chameleon Skinks	25
Terradon Riders	3
Ripperdactyl Riders	4
Salamanders	5
Skink handlers	50
Razordons	2
Kroxigor	3
Jungle Swarms	4
Ogre Kingdoms
Ogres	7
Ironguts	6
Leadbelchers	4
Gorgers	3
Gnobler Fighters	50
Sabertusks	11
Mournfang Cavalry	1
Maneaters	4
Yhetees	7
Orcs and Goblins
Orcs with Choppas	25
Orcs with Pigstikkas	33
Arrer Boyz	25
Boar Boyz with Choppas	10
Boar Boyz with Pigstikkas	11
Boar Chariots	2
Armored Orcs	20
Black Orcs	12
Savage Orcs with Choppas	25
Savage Orcs with Spear	33
Savage Orc Boar Boyz with Choppas	11
Savage Orc Boar Boyz with spears	12
Goblins	50
Goblin Wolf Riders	10
Goblin Wolf Chariots	2
Nasty Skulkers	25
Night Goblins	33
Night Goblins with Nets	25
Fanatics	8
Sguig Hoppers	8
Sguig Herders	25
Mangler Sguigs	1
Cave Sguigs	25
Spider Riders	9
Snotlings	4
Trolls	4
Stone Trolls	4
River Trolls	4
Skaven
Clanrats	50
Stormvermin	20
Slaves with spears or slings	50
Slaves with Rusty Blades	33
Poisoned Wind Globadiers	20
Jezzails	11
Stormfiends, ratling cannons	3
Stormfiends, Windlaunchers	5
Stormfiends, Warpfire	2
Stormfiends, Doomflayer	2
Stormfiends, Grinderfists	3
Stormfiends, Shock	3
Stormfiends, Clubbing blows	3
Giant Rats	33
Rat Swarms	5
Rat Ogres	5
Plague Monks	50
Plague Censer Bearers	33
Night Runners	33
Gutter Runners	16
Tomb Kings
Skeleton Warriors	50
Skeleton Archers	33
Skeleton Horsemen	9
Skeleton Horse Archers	7
Skeleton Chariots	2
Tomb Guard	20
Necropolis Knights	3
Tomb Scropions	4
Ushabti with melee	6
Ushabti with bows	5
Sepulchral Stalkers	5
Carrion	5
Tomb Swarms	4
Vampire Counts
Morghast Harbingers	2
Morghast Archai	4
Vargheists	5
Blood Knights	4
Fell Bats	6
Bat Swarms	3
Zombies	100
Dire Wolves	12
Skeleton Warriors	50
Grave Guard	20
Black Knights	8
Crypt Ghouls	33
Crypt Horrors	7
Spirit Hosts	4
Hexwraiths	6
Warriors of Chaos
Warriors with hand weapon	14
Warriors with Greatblade	12
Warriors with Halberd	14
Marauders	50
Forsaken	11
Chaos Chariots	1
Marauder Horsemen	9
Marauder Horsemen with Javelin	9
Chosen	10
Chaos Knights	5
Gorebeast Chariots	1
Chaos Spawn	1
Wrathmongers	6
Skullreapers with gore blades daemonbblades	8
Skullreapers with spinecleavers and soultearers	7
Skullreapers with mutations	7
Skullcrushers	3
Blight Knights	8
Hellstriders	5
Chaos Warhounds	20
Chaos Ogres	7
Chaos Troll	4
Dragon Ogres	4
Chaos Familiars	50
Wood Elves
Wild Riders	7
Wardancers blades	33
Wardancers staves	33
Waywatchers	20
Glade Guard	33
Glade Riders	6
Eternal Guard	33
Wildwood Rangers	20
Warhawk Riders	4
Sisters of the Thorn	9
Great Eagles	4
Dryads	25
Tree Kin	6