I did this and the Party girl is still spawning.
<entity_class name="zombiePartyGirl" extends="zombieTemplateSlimFemale">
<property name="UserSpawnType" value="Menu" />
<property name="SizeScale" value="0.99" />
<property name="Tags" value="entity,zombie,walker" />
<property name="Mesh" value="@:Entities/Zombies/Prefabs/ZBigMama.prefab" />
<property name="DismemberTag_L_HeadGore" value=" CocktailWaitress/Blunt/Head; CocktailWaitress/Blade/Head" data=" target=Neck+scale=0,0,0+atp=true+type=blunt+detach=true+atb=true; target=Neck+scale=0,0,0+atp=true+type=blade+detach=true+atb=true " />
<property name="DismemberTag_L_LeftUpperLegGore" value=" CocktailWaitress/Blunt/LeftUpperLeg; CocktailWaitress/Blade/LeftUpperLeg" data=" target=LeftUpLeg+scale=1,0.5,1+type=blunt+detach=true; target=LeftUpLeg+scale=1,0.5,1+type=blade+detach=true " />
<property name="DismemberTag_L_LeftLowerLegGore" value=" CocktailWaitress/Blunt/LeftLowerLeg; CocktailWaitress/Blade/LeftLowerLeg" data=" target=LeftLeg+scale=0,0,0+atp=true+type=blunt+detach=true; target=LeftLeg+scale=0,0,0+atp=true+type=blade+detach=true " />
<property name="DismemberTag_L_RightUpperLegGore" value=" CocktailWaitress/Blunt/RightUpperLeg; CocktailWaitress/Blade/RightUpperLeg" data=" target=RightUpLeg+scale=1,0.4,1+type=blunt+detach=true; target=RightUpLeg+scale=1,0.4,1+type=blade+detach=true " />
<property name="DismemberTag_L_RightLowerLegGore" value=" CocktailWaitress/Blunt/RightLowerLeg; CocktailWaitress/Blade/RightLowerLeg" data=" target=RightLeg+scale=0,0,0+atp=true+type=blunt+detach=true; target=RightLeg+scale=0,0,0+atp=true+type=blade+detach=true " />
<property name="DismemberTag_L_LeftUpperArmGore" value=" CocktailWaitress/Blunt/LeftUpperArm; CocktailWaitress/Blade/LeftUpperArm" data=" target=LeftArmRoll+scale=.5,1,1+type=blunt+detach=true; target=LeftArmRoll+scale=.5,1,1+type=blade+detach=true " />
<property name="DismemberTag_L_LeftLowerArmGore" value=" CocktailWaitress/Blunt/LeftLowerArm; CocktailWaitress/Blade/LeftLowerArm" data=" target=LeftForeArmRoll+scale=0,1,1+atp=true+type=blunt+detach=true; target=LeftForeArmRoll+scale=0,1,1+atp=true+type=blade+detach=true " />
<property name="DismemberTag_L_RightUpperArmGore" value=" CocktailWaitress/Blunt/RightUpperArm; CocktailWaitress/Blade/RightUpperArm" data=" target=RightArmRoll+scale=.5,1,1+type=blunt+detach=true; target=RightArmRoll+scale=.5,1,1+type=blade+detach=true " />
<property name="DismemberTag_L_RightLowerArmGore" value=" CocktailWaitress/Blunt/RightLowerArm; CocktailWaitress/Blade/RightLowerArm" data=" target=RightForeArmRoll+scale=0,1,1+atp=true+type=blunt+detach=true; target=RightForeArmRoll+scale=0,1,1+atp=true+type=blade+detach=true " />
<!-- Gameplay zombiePartyGirl -->
<property name="MoveSpeedAggro" value="0.3, 1.35" />
<!-- slim, regular -->
<effect_group name="Base Effects">
<passive_effect name="HealthMax" operation="base_set" value="125" />
</effect_group>
</entity_class>
<entity_class name="zombiePartyGirlFeral" extends="zombiePartyGirl">
<property name="UserSpawnType" value="Menu" />
<property name="Tags" value="entity,zombie,walker,feral" />
<property name="Mesh" value="@:Entities/Zombies/Prefabs/ZBigMamaFeral.prefab" />
<!-- Gameplay zombiePartyGirlFeral -->
<property name="DismemberMultiplierHead" value=".7" />
<property name="DismemberMultiplierArms" value=".7" />
<property name="DismemberMultiplierLegs" value=".7" />
<!-- Feral -->
<property name="PainResistPerHit" value=".7" />
<!-- Feral -->
<property name="MoveSpeedAggro" value="0.6, 1.45" />
<!-- slim, feral -->
<property name="JumpMaxDistance" value="4.6, 5" />
<property name="HandItem" value="meleeHandZombieShortFeral" />
<property name="ExperienceGain" value="750" />
<!-- XP grunt feral -->
<property name="LootDropProb" value=".03" />
<!-- Feral -->
<effect_group name="Base Effects">
<passive_effect name="HealthMax" operation="base_set" value="300" />
<!--<passive_effect name="EntityDamage" operation="perc_add" value="0"/>-->
<!-- Feral damage -->
</effect_group>
</entity_class>
<entity_class name="zombiePartyGirlRadiated" extends="zombiePartyGirlFeral">
<property name="UserSpawnType" value="Menu" />
<property name="Tags" value="entity,zombie,walker,feral,radiated" />
<property name="Mesh" value="@:Entities/Zombies/Prefabs/ZBigMamaRadiated.prefab" />
<!--<property name="ParticleOnSpawn" value="ParticleEffects/RadiatedParticlesOnMesh" param1="SetShapeToMesh0"/>-->
<!-- Gameplay zombiePartyGirlRadiated -->
<property name="DismemberMultiplierHead" value=".4" />
<property name="DismemberMultiplierArms" value=".4" />
<property name="DismemberMultiplierLegs" value=".4" />
<!-- Radiated -->
<property name="PainResistPerHit" value=".9" />
<!-- Radiated -->
<property name="ExperienceGain" value="1200" />
<!-- XP grunt radiated -->
<effect_group name="Base Effects">
<passive_effect name="HealthMax" operation="base_set" value="550" />
<!--<passive_effect name="EntityDamage" operation="perc_add" value="0"/>-->
<!-- Feral damage -->
<triggered_effect trigger="onOtherDamagedSelf" action="ModifyCVar" target="self" cvar="RadiatedRegenAmount" operation="set" value="4" />
<triggered_effect trigger="onOtherDamagedSelf" action="AddBuff" target="self" buff="buffRadiatedRegen" />
</effect_group>
</entity_class>