retaliation Regular is a font by Fonts by GKDN (www.gwizsk.com), designed by Chris Vile in 2012.
Free for personal use only, for commercial you must purchase a font license from one of the following sites:
www.chrisvile.com
www.fontmonger.com
www.gwizsk.com
www.facebook.com/designsbychris (Under 'font store' link)