Awarded for completing all thr NERO checkpoints.
Some are harder than others, one is a royal pain until you take out the Horde on top of it.
One in the very first area of the map (Cascade) has a horde ontop of it. Inside a train. It is possible to do the checkpoint without dealing with the Horde. But it's easier to destroy the hored and then deal with the checkpoint.
Make sure ALL alarms are destroyed.
These include on the roofs of the NERO buildings and booths om the highways themselves. Also, on some of the later ones they'll be on floodlights around the checkpoint.
Be careful, missing one can bring a horde down on you if it happns to be passing by.
Find the Petrol can first
Find the petrol cabs around the base and the generator before doing anything, then deal with the alarms.
Defuse the bomb
Before turning the Generator on, look around the buildings with NERO on the side and see if there is an open fuse box on the side. This need to be found and replaced before turning the generator on.