Review: Rainbow Six Extraction is not Left 4 Dead, and that's a good thing

[Windows Central]

A hardcore experience that will likely turn off casual players.
Like many other players who grew up in what was arguably the golden age of co-op shooters, I have incredibly fond memories of enjoying games like Halo 3 and Valve's Left 4 Dead with friends online — the latter even spawned a sub-genre of its own with a cult-like following. Unfortunately, after the explosive and wildly popular sequel Left 4 Dead 2 dropped in 2009, fans have been left with a zed-shaped hole in their hearts that only team co-op could fill.

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