I had a nice discussion with EdWood about special encounters and lockers. Currently lot of people searching lockers or goes in the wasteland alone. Correct me if I'm wrong but right now the number of players in a group has no effect on lockers or special encounters.
This suggestion is about giving some boost to those who play the game together with others instead of hunting alone after all its an MMO game. A group of players who are traveling from A to B should have more chances to find special encounters or lockers. This would encourage grouping together. I rarely encountered players who were looking for footlockers in groups.