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First MMO first-person shooter (FPS) videogame

First MMO first-person shooter (FPS) videogame
Who
World War II Online, a.k.a Battleground Europe (Cornered Rat Software, 2001)
What
First
When
2001
The first massively multiplayer FPS is World War II Online , a.k.a. Battleground Europe (Cornered Rat Software, 2001), which pits players in a virtual version of mainland Europe fighting as British, French or German troops. Featured in Guinness World Records Gamers Edition 2011