This will be one of your first achievements on the game.
Basically during the fighting scenes just grapple someone and look for a bold red marking around a certain thing, it could be a soda machine, shutters, telephone box, big speakers in the night market, vented fans etc.
Do 5 this will unlock. I would also continue and do a few in the other fighting bits as there is a gold stat for 50 enviromental kills.