"Fry The Brain" Available In PDF

 Fry The Brain is a book on guerilla urban sniping. Or rather, it is THE book on guerilla urban sniping. Not just about where to set up or how to take a shot, but how to avoid getting caught. And it examines some case studies, including sniping undertaken by the IRA and similar groups in Northern Ireland. In any event, the book is now available to download as a PDF at Wyoming Survival. It is also available from Amazon, although strangely the hardcover edition is much less expensive than the soft-cover version. 

    The article "On Urban Snipers And Their Reach In Modern Conflicts" also discusses urban sniping in Northern Ireland. A selection from the article:

    The PIRA (Provisional Irish Republican Army), a group labeled as a terrorist organization by numerous governments, ran a tight urban-clandestine sniping campaign for decades until the fighting was called off, (and Sinn Fein and Gerry Adams became legitimate in the late 1990s). PIRA, frankly was an innovator in modern terrorism tactics, and its urban sniping was considered paramount; it is not without reason why many terrorist groups imitate the tactics of PIRA. And this is not just limited to urban guerrilla sniping. They are responsible for the TTPs (tactics, techniques, procedures) of hijackings, bomb making, and other such violent acts in a modern context. In 1993, in South Armagh, Northern Ireland, British soldiers simply stopped doing their jobs after a PIRA sniper crew completed a string of successful attacks in the area. One Royal Scots platoon was reprimanded because they falsified information about vehicles passing through their assigned checkpoint; the soldiers matter-of-factly did not want to man their checkpoint since it was likely PIRA snipers would engage them. Checkpoints, with their highly visible and predictable nature tend to become a given target for guerrilla sniper attacks—enemy soldiers are often exposed and display the same patterns day after day.

    A notable way that PIRA cashed in on sniping-fear in Northern Ireland was to place [signs] that read “Sniper at Work” depicting the silhouette of a man with a rifle. According to a 2006 British military report, these signs along with media hype, aggrandized sniper fears and inherently affected British troops’ morale and performance — like in 1993 in South Armagh. Similarly, some insurgent factions in Iraq record their actual urban sniping operations and disseminate them through various media for propaganda purposes. They believe that broadcasting their footage generates fear and demoralizes Americans and other occupying Westerners.

And some other related articles: 

• "The Employment of Sniper in Modern Battlefield" (PDF) by Erdem Barışık and Gökhan Baltacıoğlu, Journal of Military and Information Science (2014).
• "Russian Urban Tactics: Lessons from the Battle for Grozny" (PDF) by Lester W. Grau, Institute for National Strategic Studies. Pay particular attention to the section on smoke and white phosphorus.