ShellShock 2: Blood Trails

The story begins with a US plane carrying the top-secret cargo codenamed "Whiteknight" losing contact over the jungles of Cambodia. A Special Ops unit, led by Sergeant Caleb Walker, is sent to retrieve the cargo. However, only Caleb returns from this mission, but he has changed and is now insane. His younger brother Nate is brought in to get information about "Whiteknight", but things take a turn when VC forces attack the outpost and Cal breaks out of quarantine.

Nate must then hunt down his brother, solve the mystery of "Whiteknight", and survive the horrors of the Vietnam War as he navigates through linear levels. Armed with grenades, pistols, M16s, and other firearms, Nate can hold off enemies, but will need to act fast when an enemy overwhelms him or in scripted situations.