Fire Trooper

Fire Trooper (ファイヤー・トルーパー) was an Outer Heaven mercenary who fought against Solid Snake during Operation Intrude N313.

Background
Fire Trooper was originally a member of GSG 9, a German counter-terrorism special forces group. During his time with the unit, Fire Trooper mastered his weapon of choice, the flamethrower, which was considered an unusual among his unit, since they mainly conducted SWAT or sniper type operations. Nevertheless, Fire Trooper excelled in wielding his flamethrower so highly, that he was eventually able to handle it as if it were a mere rifle. Due to his dangerous choice of weapon, Fire Trooper was forced to wear a white flame-retardant suit. After spending some time with the unit, he left to became a mercenary before being contracted by the mercenary nation Outer Heaven.

Fire Trooper engaged Solid Snake while on the Building 2 basement floor of the Outer Heaven Fortress, guarding the elevator to the rooftop. Despite Fire Trooper's heavy advantage of an even battlefield with no cover in sight, Snake was able to take advantage of his relative lack of bodily protection, and eliminated him with a mere pistol.

Trivia

 * Another flamethrower wielding soldier, The Fury, fought against Naked Snake in an underground area. Similarily, The Fury also wore a similar mask to Fire Trooper during World War II.
 * The flamethrower guards deployed during Operation Snake Eater, wore uniforms that were very similar to Fire Trooper's.

Behind the Scenes

 * Fire Trooper, along with Machinegun Kid, are the only two mercenary boss characters whose name wasn't changed in the re-releases of the original Metal Gear.