Aliens vs Predator 2 Single-Player Map update

The Single-Player Map Update 1, released December 12, 2001, makes several changes to the Aliens vs. Predator 2 single-player missions, including a work around for a Voodoo 5 rendering crash in "Betrayal," the removal of a scripted sequence with a guard and facehugger in "Betrayal" that could fail to trigger correctly under certain rare circumstances, an added blocker to prevent the players from wedging themselves in beneath the containment module at the beginning of "Unexpected Allies," prevention of a situation in "New Target" where a player could survive a fall to the bottom of a deep pit and thus get stuck.