"We'll just hunker down here, set up a perimeter!" Rick, from Walking Dead, in a remote stretch of road with a couple of vehicles and the guardrails to work with, after being driven from a fortified position with fences, walls and the potential for interlocking fields of fire. He's clearly a zombie-fighting genius.
The characters in The Walking Dead from AMC are zombie fighting pros by now, or should be. They're phenomenal shots, knocking down walkers from at fifty meters or more from fast moving vehicles. Best of all though, they've learned to slaughter walkers with knives and shovels and other tools to the skull. It's apparently a very effective TTP.