The Inferno Grenade is an powerfully updated version of it's predeccesors,it burns through structures and forests faster and deals more damage to infected.Best used during RoofTop Fights to delay the infected.

Fire Molotov / Incendiary Grenade / Inferno Grenade /Hellfire Grenade / Apocalypse Grenade
Normal Frag Grenade / Stun Grenade / Pipe Bomb / Fused Grenade
Support Bile Bomb / Smoker Bomb / Flash Grenade / Vortex Grenade / Blackhole Grenade