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

<i_f_v-sing>

opfor artillery battery c2

opfor artillery battery command and control

opfor artillery battery fdc

opfor artillery battery fire direction center

<i_f_v-pl>

opfor artillery battery c2s

opfor artillery battery command and controls

opfor artillery battery fdcs

opfor artillery battery fire direction centers

<i_f_v>

opfor artillery battery c2

opfor artillery battery c2s

opfor artillery battery command and control

opfor artillery battery command and controls

opfor artillery battery fdc

opfor artillery battery fdcs

opfor artillery battery fire direction center

opfor artillery battery fire direction centers