though, there was no danger right now as he was in cover:

Moe is lying beside him acting as a spotter with a set of binoculars while Steve scans the streets with a sniper rifle. He’s a large man, not fat large, but tall and strong large. One of those guys that held his strength and posture into old age, despite the obvious battles he’d endured, as told by the deep lines on his face. It seemed that they were doing some quick recon and had just discovered that the town was crawling. This was an actual memory he could sense, not some dream sequence, and was of a time before he was bitten. The first to emerge.

Studying the movement patters of the gangs they can see that they appear to operate as organised groups running around attacking people.