Its in GUNS_M_PV_LAUNCHER files are called,
FLAME_ANIBASE
PVMLA_AR_FLAME
PVMLA_W_AR_FLAME
PVMSH_AR_FLAME
CM_HND_NM_DF_FLAME1_CH
CM_HND_SP_DF_FLAME_SH
CM_HND_SP_DF_FLAME_CH
CW_HND_NM_DF_FLAME1_CH
ANI_G_FLAME1
PVMLA_AR_FLAMEMOD
-In GUNS_T_PV_LAUNCHER
PV_FLAME
PV_FLAMEMOD
PV_LCH_DF_FLAMETHROWER_BC
-In GUNS_SND_LAUNCHER
FLAMETHROWER