Bullshit man. Myself and six others ended up taking over Northwest Airfield at one point. One group of three, myself and two others were sent to raid the hangers, barracks, and whatever other buildings we could find with decent loot. The rest held control of the fire and communications tower. Two of the people left behind had sniper rifles. Instead of the raiding group opening up on zombies that were too close (thus alerting the hoard) the snipers provided an awesome little service called overwatch and killed them for us. In addition, these snipers watched for potential enemy player positions. We were able to move completely unhindered so long as we did our part and didn't get careless. It was glorious.