Black Mesa Transit System image - Half-Life:Black Guard mod for Half-Life

You're play a security guard be employed as Black Mesa Research Facility. In serving highly level research facility of the special one officer black security, they also called as secret security personnel, so your work need to going the safeguard through highly level scientists. You're familiar with the who knew name Eddy, but he try a hiding secret behavior, that you would be going next one justice sentencing in the depths of him, at the end must to stop his conspiracy.