The category "<i_f_v-pl>" can be expressed as follows:
anti tank brdms
antitank lavs
armored cars
bm21 mlrses
bm21 mrls
bmp2 c2s
bmp2 commands
bmp2ks
bmp2s
bradley infantry fighting vehicle with stingers
bradleys
brdm2 reconnaissances
brdm2 recons
brdm2s
brdm3s
brdms with a t
brdms with atgm
btr-60 c2s
btr-60 command and controls
c2 lars
lar mortars
lar ms
lar with a mortars
lar with mortars
lars
lav 25s
lav a ts
lav c2s
lav mortars
lav ms
lav rs
lav with a mortars
lav with mortars
lavs
light armored vehicles
m2 stingers
m2s
mlrs bm21s
mrl bm21s
mt-lb with 82mm mortars
mt-lb with eighty two mortars
mt-lbs
opfor apcs
opfor armored personnel carriers
opfor medium mortars
reconnaissances
recons
reinforced m2s
self propelled 82mm mortars
self propelled eighty two mortars
skurkas
sp 82mm mortars
sp eighty two mortars
swa apcs
swa armored personnel carriers
swa bm21s
swa btr-60 pus
swa ifv commands
swa ifvs
swa mt-lb with 82mm mortars
swa mt-lb with eighty two mortars
swa zpu-4s
swa zsu23-4ms
swa zsu23-4s
swa zu23-2s
zpus
zsu23-4ms
zsu23-4s