The counterpart to that tactic is to emulate "Flame and Citron" and get very close, very calmly, shoot, then carefully leave the area.This is a true statement, however there are some serious caveats. First off, in the realm of military tactics, "You can get away with anything once." is a good rule to follow. But "better lucky than good" only gets you so far in any endeavor.
I will suggest that since Hollywood and video games have turned the sniper into a figure of popular culture, a well dressed fellow calmly walking away is less likely to even be considered.
Everyone will be looking up and away for the big gun with the big suppressor.
There is a reason that Soldiers in Iraq went to "aggressive scanning" in urban areas. Things like RKG-3 anti armor grenades have to be deployed close. However, an Iraqi student was able to walk up behind a Soldier, shoot him in the head, and then leave unmolested a few years ago.
So, you can get away with anything once. Eventually the odds catch up and the enemy adapts to your tactics. Warfare is like the "Red Queen" theory of evolution, sometimes you have to run as fast as you can just to stay in place. Think about the evolution of American Football. The "Shotgun" the "I Formation" and other such "tactics" each had their day in the sun until other teams caught on and developed the appropriate technique to counter those tactics.
Right now "flame and citron" will not work against any of the NATO forces that learned hard lessons in Iraq and Afghanistan. It might work against a different force such as the Norks or Iranians but getting close to a well armed opponent who is looking to kill you is a quick form of suicide.
Let me ask this, if you want to remain anonymous, with all the cameras in our world, would "Flame and Citron" be a viable tactic in an urban area? The answer is no in the developed world, and maybe in the developing world (like Iraq). In an rural area, where will you find a crowd to calmly walk into?
I'm not saying that "flame and citron" should be taken out of the playbook. I'm saying that you can't rely on it, you need to look specifically for terrain that would allow it to succeed, and then you need to have balls of steel to pull it off.
On the flip side Snipers don't live forever either. Anyone remember Juba? That bastard got hit with a 500 pounder. Do the same tricks over and over again and your number will come up. Fighting smart means thinking through options, in both time and space, and setting yourself up to conduct follow on operations. Conserve your combat power, think asymetrically.
If every chowhall in Iraq had burned to the ground in 2008 what do you think the EFFECT would have been on morale? It would have crushed morale.
First it would have conveyed the message that you weren't safe on the FOB. Everyone knows this is true in the back of their mind but a lot of people really want to FEEL safe even if it is a lie.
Second it would have meant MRE's, T-RATs, and UGR's for at least a few weeks. Bad chow sucks balls.
Third it would have shifted resources from rearming and refueling to rebuilding chow halls.
So fight smart.