NTF soldiers promptly tried to leave the place when they spotted the Shy Guy. What surprised me was that, when one of them returned to the exit door, the opening door sound was played like twenty times in quick successions and the door opened with great difficulty.
Not a very serious issue, but I thought you guys might consider looking into it since it looked kind of clunky and glitch-inducing.
Game configuration: 1600x900, fullscreen, use launcher, difficulty: safe, map seed: l6p38i. No cheats. Unfortunately I forgot to look for error messages in the console.