Dimitris knew he had to be careful because if they were engaged in a confrontation with Corey, he knew that Corey wouldn't hesitate to kill him.
He couldn't risk it because if what Glenn said was true then these people were more than capable of protecting themselves.
Dimitris arrived at their location but they had parked the car a couple of distance away so there was no they could be seen.
They proceeded to encroach the area, they were all careful as they knew that if a zombie was to spot them then there would be no way to escape them or rather, their location would be given up,
They arrived after a couple of minutes and realized that the area was deserted except for a few men that Corey left behind to protect the cars and secure the area.
They were about to exterminate these people and Dimitris knew he would be going against Mariam's orders.