It's a common, and entirely justified complaint that most modern shooters look too drab. They're too brown, too grey, too dreary. You could counter that, well, since wars are fought in the dirt and ruins that's how they're supposed to look, but it's too nice a day for arguments.
Let's instead just enjoy this concept art from the recently-released Ghost Recon: Future Soldier, encompassing the work of Ubisoft artists Constance Beillard, Michel Donze and Fabien Roumazeilles (those links lead to each artist's personal site).
To see the larger pics in all their glory (or so you can save them as wallpaper), right-click on them below and select "open in new tab".