The category "<i_f_v>" can be expressed as follows:
122mm howitzer
122mm howitzers
152mm howitzer
152mm howitzers
1v13 swa
1v13 swas
1v14 swa
1v14 swas
1v16 swa
1v16 swas
2s1 122mm howitzer
2s1 122mm howitzers
2s1 howitzer
2s1 howitzers
2s3 152mm howitzer
2s3 152mm howitzers
2s3 howitzer
2s3 howitzers
37mm anti air artilleries
37mm anti air artillery
37mm anti air machine gun
37mm anti air machine guns
37mm triple-a
37mm triple-as
57mm triple-a
57mm triple-as
anti tank brdm
anti tank brdms
antitank lav
antitank lavs
armored car
armored cars
astros an-ucf
astros an-ucfs
astros c2
astros c2s
astros command and control
astros command and controls
bm21 mlrs
bm21 mlrses
bm21 mrl
bm21 mrls
bmp2
bmp2 c2
bmp2 c2s
bmp2 command
bmp2 commands
bmp2k
bmp2ks
bmp2s
bradley
bradley infantry fighting vehicle with stinger
bradley infantry fighting vehicle with stingers
bradleys
brdm with a t
brdm with atgm
brdm2
brdm2 recon
brdm2 reconnaissance
brdm2 reconnaissances
brdm2 recons
brdm2s
brdm3
brdm3s
brdms with a t
brdms with atgm
c2 lar
c2 lars
gainful fcr
gainful fcrs
gainful fire control radar
gainful fire control radars
gainful launcher
gainful launchers
gainful tel
gainful tels
gaskin
gaskins
lar
lar m
lar mortar
lar mortars
lar ms
lar with a mortar
lar with a mortars
lar with mortar
lar with mortars
lars
lav
lav 25
lav 25s
lav a t
lav a ts
lav c2
lav c2s
lav m
lav mortar
lav mortars
lav ms
lav r
lav rs
lav with a mortar
lav with a mortars
lav with mortar
lav with mortars
lavs
light armored vehicle
light armored vehicles
m1939
m1939s
m2
m2 stinger
m2 stingers
m2s
m83a
m83a 60mm mortar
m83a 60mm mortars
m83a mortar
m83a mortars
m83as
maz-543 tel
maz-543 tels
mixed aa fcr
mixed aa fcrs
mixed aa fire control radar
mixed aa fire control radars
mixed air defense fcr
mixed air defense fcrs
mixed air defense fire control radar
mixed air defense fire control radars
mixed anti air fcr
mixed anti air fcrs
mixed anti air fire control radar
mixed anti air fire control radars
mlrs bm21
mlrs bm21s
mrl bm21
mrl bm21s
mt-lb
mt-lb with 82mm mortar
mt-lb with 82mm mortars
mt-lb with eighty two mortar
mt-lb with eighty two mortars
mt-lbs
opfor 37mm
opfor 37mms
opfor 57mm
opfor 57mms
opfor apc
opfor apcs
opfor armored personnel carrier
opfor armored personnel carriers
opfor artillery battalion fdc
opfor artillery battalion fdcs
opfor artillery battalion fire direction center
opfor artillery battalion fire direction centers
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
opfor medium mortar
opfor medium mortars
recon
reconnaissance
reconnaissances
recons
reinforced m2
reinforced m2s
s-60
s-60s
sa-9
sa-9 gaskin
sa-9 gaskins
sa-9s
self propelled 82mm mortar
self propelled 82mm mortars
self propelled eighty two mortar
self propelled eighty two mortars
skurka
skurkas
sp 82mm mortar
sp 82mm mortars
sp eighty two mortar
sp eighty two mortars
swa 122mm howitzer
swa 122mm howitzers
swa 152mm howitzer
swa 152mm howitzers
swa 1v13
swa 1v13s
swa 1v14
swa 1v14s
swa 1v16
swa 1v16s
swa 2s1 122mm howitzer
swa 2s1 122mm howitzers
swa 2s1 howitzer
swa 2s1 howitzers
swa 2s3 152mm howitzer
swa 2s3 152mm howitzers
swa 2s3 howitzer
swa 2s3 howitzers
swa 37mm
swa 37mm aamg
swa 37mm aamgs
swa 37mms
swa 57mm
swa 57mm aamg
swa 57mm aamgs
swa 57mms
swa 60mm mortar
swa 60mm mortars
swa acrv 1v13
swa acrv 1v13s
swa acrv 1v14
swa acrv 1v14s
swa acrv 1v16
swa acrv 1v16s
swa apc
swa apcs
swa armored personnel carrier
swa armored personnel carriers
swa bm21
swa bm21s
swa gainful fcr
swa gainful fcrs
swa gainful fire control radar
swa gainful fire control radars
swa gainful launcher
swa gainful launchers
swa gainful tel
swa gainful tels
swa gaskin
swa gaskins
swa ifv
swa ifv command
swa ifv commands
swa ifvs
swa maz-543 tel
swa maz-543 tels
swa mixed aa fcr
swa mixed aa fcrs
swa mixed aa fire control radar
swa mixed aa fire control radars
swa mixed air defense fcr
swa mixed air defense fcrs
swa mixed air defense fire control radar
swa mixed air defense fire control radars
swa mixed anti air fcr
swa mixed anti air fcrs
swa mixed anti air fire control radar
swa mixed anti air fire control radars
swa mt-lb with 82mm mortar
swa mt-lb with 82mm mortars
swa mt-lb with eighty two mortar
swa mt-lb with eighty two mortars
swa sa-6 fcr
swa sa-6 fcrs
swa sa-6 fire control radar
swa sa-6 fire control radars
swa sa-6 launcher
swa sa-6 launchers
swa sa-6 tel
swa sa-6 tels
swa sa-9 gaskin
swa sa-9 gaskins
swa zpu-4
swa zpu-4s
swa zsu23-4
swa zsu23-4m
swa zsu23-4ms
swa zsu23-4s
swa zu23-2
swa zu23-2s
xmg1s scv
xmg1s scvs
xmg1s secondary c2
xmg1s secondary c2s
xmg1s secondary control
xmg1s secondary controls
zpu
zpus
zsu23-4
zsu23-4m
zsu23-4ms
zsu23-4s