《地狱两周：生存底线的无尽考验》volumeshader bm

　　The U.S. Army Special Forces Green Berets are America's unconventional warfare specialists. Whereas the military's focus usually is on brute-force tactics, the Green Berets rely on creative, innovative and stealthy tactics to destabilize an enemy from within. They are experts in guerrilla warfare, sabotage, and subversion. They live as the locals do, and they live by their wits... (展开全部)