The rules that use the vocabulary item "heavy" are:

<team_or_group_company_echelon>

mech heavy combat team

mechanized heavy combat team

opfor mech heavy combat team

opfor mechanized heavy combat team

swa mech heavy combat team

swa mechanized heavy combat team

swa tank heavy combat team

tank heavy combat team

<specific_team_type-sing>

heavy machine gun

<team_or_group_section_echelon>

tank heavy combat team headquarters

tank heavy combat team hq

<specific_vehicle_type-pl>

heavy equipment transporters

<specific_team_type-creatable-sing>

heavy machine gun

<specific_vehicle_type-sing>

heavy equipment transporter

<specific_team_type-not_creatable-sing>

heavy machine gun

<specific_vehicle_type-not_creatable-pl>

heavy equipment transporters

<specific_vehicle_type-creatable-sing>

heavy equipment transporter

<specific_vehicle_type-not_creatable-sing>

heavy equipment transporter

<specific_vehicle_type-not_creatable>

heavy equipment transporter

heavy equipment transporters