This is a bug that happens in the Breaking Point mod. According to the DEVs there, it´s something they can´t fix on their side, so they asked to put it here.
deathlyrage (administrator): Please make this issue on http://feedback.arma3.com/ The breaking point dev team can't fix it.
http://www.youtube.com/watch?v=0Xge-BHgoYg
BP Tracker link: http://www.thezombieinfection.com/bugtracker/view.php?id=857