So maybe I am cynical about HL:2 but it seems Doom III beat them to the punch.
The new Anti-gravity gun? Yeah, it is a mod for Doom III now. Check it out – being an angry helpdesk worker, I decided to pick up a laptop and proceed to smite the enemies of Hell with its awesome power.
That seems hardly fair. I mean demons from the pit of hell are no match for the fury of a HUB employee and his laptop.