Ok, so here's the deal, a freedom fighter is someone who fights for something he/she believes in, a terrorist will shout Allahu akbar and just blows crap up when they don't like something. Think of a vigilante like The Arrow and the Terrorist Dameon Dark. Arrows kills/hurts for freedom, Dameon just kills so he can make the world in his own image. Which is not an example of freedom fighting because it involves killing people who just get in your way. Hope this answered your qustion.