It would have a map cycle. The point of the game-mode would be to have sneak attacks. It would be slower paced, and it would be different in comparison to your typical TDM.
About the map:
You'd basically be in an ancient Arab village, and the objective is to snipe your opponents from dozens of feet away either on rooftops, trenches, or in buildings/windows. The game-mode would have classes too, such as:
-Rebels
-Civilians
-Government Military Officers
-Threats (radicals/terrorists)
In the game-mode you'd spawn with snipers and land-mines. I said before, it's slow paced which means you don't just go and shoot others; it takes strategy, tactics, and logical thinking. In the game-mode there would also be a modification which would be available for others to download separately (it would be a GPS showing the map and where the nearest enemies are/if any enemies are around you in your area).
I think this is more of a request than an idea because I really want somebody to make this into the real thing.
If someone can turn my idea into a real game-mode, I'd be thrilled.