Reaper can sort him out.

Who the hell are you? What are you doing here?"

You demand as the young lab worker looks terrified of you.

"I... I work at the lab here."

He stutters his reply as you can see he is doing his best not to wet himself due in large part to your rifle aimed at him.

"Great so you can tell me what that chemical do..."

Your sentence is interrupted by the sound of a shotgun blast and the lab worker's head explodes in front of you.

The blood splashes on your face as Reaper drops the aim of his smoking shotgun.

"We have to move."

Reaper orders and you find yourself falling into line as you glance back at the headless corpse that was once a young scientist.

Before you know it your back on the jet returning to base successful as you wipe away the blood splatter that covers your face.

As soon as you arrive back Widowmaker greets you as Reaper leaves with the chemical. Widowmaker shows you to your simple single bedroom with en-suite bath and shower.