Operation7 is an exclusively online multiplayer first person shooter (FPS). It requires a download, which will allow you to join game rooms and play a number of different team game modes and arenas.
Unlike Quake Live, for example, Operation7 is not an upfront shooter with a fun emphasis, but rather a serious game with a focus on realism and "one shot kills", which favor the pro-sniper style gamer. In this sense, it's a purification of a certain style of gameplay people either love or hate.
The one-shot-kill aspect might put some players off, but it makes Operation7 a much more tactical game than many. It's necessary to try to coordinate gameplay - using your radar - with teammates to take out the opposing sides. New players, and especially rookie FPS players, can expect a steep learning curve and lots of surprise deaths when they start out with Operation7.
Graphically, Operation7 is acceptable, with some nice touches, but it won't amaze. The sound is impressive, with effects like deafness after nearby explosions, as well as pleasingly noisy guns. The initial Operation7 installation and registration process is fairly lengthy, and to use the homepage you'll need a Firefox plugin. Some of the voice-overs are a little too macho.
Ideal for skilled gamers, Operation 7 is an effective and realistic online experience.
