The name's poshgaloo AKA Riley Walker and I am quite possibly one of the biggest Half-Life aficionados you will come across in your lifetime. I am also a mapper for the Goldsource engine. So there you go. ^_^ PS: I am also a Doom fan and a huge Fallout 4 junkie. :3
Scary scary scene from 28 Weeks Later, great sequel and great scene!