Attacks with grenades from a distance. If you get too close, they will slice you with a arm-attached blowtorch. Killing a FlameHand with a head shot will insta-kill it. If it dies of a body shot, it will attempt to suicide with a grenade killing anything within 7 meters .This can be used to your advantage either way.
napalm grenade throw, fire melee (high proc) and suicide grenade
Environment restrictions: Grineer Tile-sets
*Dont worry, any grenade about to detonate beeps violently. Run Tenno run!@!@