#5 Battlefield 1942 (PC) - [ PC ]
There are plenty of influential war shooters out there, but only Battlefield 1942 permanently changed the stakes of online warfare. Battlefield 1942 re-defined huge...and we're talking huge: huge maps, huge numbers of players (64 per server!), and huge WWII-era vehicles. And the team-oriented gameplay was a departure from shooters, too: you couldn't simply paste your finger on the fire button and hope to be victorious. Instead, you had to carefully coordinate assaults with fellow teammates laying down suppressive fire and heavy vehicle support.