It has already been noticed that if one is playing in a group, then there is one thing and another if we draw up a bivouac that there are of the group who, for example, can not see a skilled or Maria's shop so no bar appears at the bottom , in many bivouacs, the requested vehicles are too far from a bivouac while for us there is an open space where one can place the vehicle perfectly and what we also noticed is that one can no longer use a visor of a sniper rifle at a certain moment... In short, if one plays in a group (PvE-PC version)) It runs out of everything over time and then happens to some missions also that the NPC suddenly start firing while they cannot see us yet because we are still too far away from the target , hence this message.