You are a HECU soldier tasked with infiltrating the White Gate Research Center and eliminating everyone associated with illegal Xen research. Spare no one, not a single living being. In this mod you'll be: Murdering scientists and security officers blowing up stuff with c4 shooting people with the autocannon of an APC in a road rage Enough said.
It's an original mod! Not very detailed and a bit buggy, but cool.