Grenade!

What I saw was awful. Dull, rotting corpses, lying down on the squishy, wet mud. Tanks moving left and right, grenades being thrown, the water moving through my boots into my socks. My feet aching, I trudged on. Lost but not forgotten. Suddenly, GAS!
The fellow soldier behind me was covered in a green fog-like mist, struggling to get out. It enveloped him, like a snake. Choking him. Alas! He fell to the ground with a squelch! Lost But Not Forgotten