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

<specific_platoon_type-creatable-sing>

battalion recon

battalion reconnaissance

swa battalion recon

swa battalion reconnaissance

<i_f_v-sing>

opfor artillery battalion fdc

opfor artillery battalion fire direction center

<i_f_v-pl>

opfor artillery battalion fdcs

opfor artillery battalion fire direction centers

<battalion_echelon>

attack helicopter battalion field train

fa battalion field train

fa battalion field trains cp

field artillery battalion field train

field artillery battalion field trains cp

<team_or_group_section_echelon>

mech battalion command group

mechanized battalion command group

<i_f_v>

opfor artillery battalion fdc

opfor artillery battalion fdcs

opfor artillery battalion fire direction center

opfor artillery battalion fire direction centers

<css_company_echelon>

armor battalion support platoon

mechanized battalion support platoon

<unit_call_sign>

battalion <digit-not_zero>

battalion <digit-not_zero> <digit>

battalion <digit-not_zero> <digit> <digit>

battalion <digit-not_zero> <digit> <digit> <digit>

<specific_platoon_type-not_creatable-sing>

battalion recon

battalion reconnaissance

swa battalion recon

swa battalion reconnaissance

<specific_platoon_type-sing>

battalion recon

battalion reconnaissance

swa battalion recon

swa battalion reconnaissance