I'm probably the least violent person you're ever likely to meet, but I have to hold my hands up and admit that I do love a good first-person shooter. There's just something immensely satisfying about pulling off the perfect headshot, and who can ever tire of pitting their skills in the online arena?
The core mechanics of the genre haven't changed all that much, you pick up your weapon and run round wreaking havoc (unless you're an annoying camper), but there have been a long line of great titles to enjoy. Weapons have ranged from simple knives to full-blown Titans, iconic playgrounds have included V2 Rocket Facility, Dust and Crash, and if you're good enough you may even have had the chance to nuke the hell out of everyone.
What makes an online shooter truly great is up for debate, so let's hear it: which is the best multiplayer FPS game of all time? Share your nominations, and your reasoning, using the comments facility below.