XCOM: Enemy Unknown

A wonderful reboot of the much-loved turn-based classic.

UFO Debug View
Open Binaries\Win32\XComGame.exe in a executable resource editor and open up resource 1020 in the RCData section. (It's a plaintext ini file, if that helps) Searching for ShowUFOsOnMission and setting it to 1 will allow you to see the Alien "player"s UFOs setting up missions on the Geoscape, regardless of your current UFO detection capabilities.