The latest GRAW2 release from JohnTC02 has some interesting features. At the beginning of the mission the player is presented with a row of switches that can be used to alter the mission parameters. For example, once in the map you can elect to play the night version, and the map instantly switches to darkness. You can also alter the difficulty manually, so if you are playing solo and find it is too easy, restart and hit the Hard switch! There are also hidden objectives on this mission for the elite!
Make sure and read the mission information before launching. Check it out and download here. Forum discussion here.