stuck in the scientist's silo, how do I restart the level from scratch?

[c.avril1]

Hi all I seem to be stuck in the scientist's silo since I messed with the laser device, forgot to activate the console to kill the guy just next, and now the laser wouldnt' let me go back to the console i'm getting killed all the time.
Is there a way to restart this level from scratch, or a way out to have to laser kill the other guy? instead of myself ;)

[timothymark]

You have to hack the console with the Scientist.