Objectives:

Secure Passage for
Candice

Activate Master
Switch

Impossible:

Same
        

                   Talk to Candice while she's typing. When you get to
                   the green tiles, wait until the red spots appear. Jump
                   on the green ones only. Enemies will pop up in front
                   of and behind you, so keep your gun handy. When
                   you reach the end, simply activate the switch.