This subject is an idea based from the words of Timothy Gulics. I have read a bit of the replies, yet find that there is a lot more that can be done with this idea. More detail, more story, more action. Now his original topic was a question concerning swords you would use while fighting zombies... For this account ammunition has been exhausted as the armies of various countries attempted to obliterate the zombies. Firearms are useless without ammunition. Knights return!

Soo much is possible

Zombies begin to take over the world. Scenes display zombies consuming people in various parts of the world. This massive this out break is spreading quickly. Next your view is zoomed upon a single individual whom has had a strong interest of Armour. Such a person such as many people here on this forum. They equip themselves from head to toe in armour. With their swords and shields in hands they begin to fight against the zombies. First goal is to fight for survival. The second goal is the search for establishing a fresh food supplies. Third goal becomes a search for a craftsmen of making armour. This goal has a side objective, the craftsmen has to have an apprentice to teach this important skill to. A craftsmen is vital as this adventurer will need repairs made to his armour. The following circumstances involve stumbling into other enthusiasts such as himself that are equipped in the same manner. A community is established. Survivors have been found. Farming is established. Now a this person becomes King as he takes this position for himself. Other communities are established in the same way.

Think about it; Zombies whom bite and scratch in order to expose blood and infect you; are ineffective as your armour protects you. Teeth cannot break steel. A hack and slash furry of berserker style knights fight and defend towns day and night. Zombies develop ways in which to use blunted weapons such as baseball bats and clubs thus to crush the knights. A fight, rather a war arises.

Now the question stands, what kind of King are you?
Are you to brave the battle and fight alongside your knights?
Do you give orders to knights and stay protected?
Do you boost morale within your community by visiting the farmers and craftsmen?
Does everyone eat as good as you do?
How much of an effort is taken to make alliances between your community and other lands?
Do you establish each house to have a Knight to reside within?

My goodness my mind won’t stop. I run through various scenarios’ in my head of all sorts of action scenes, plots, sub plots, and quests in order to carry a themed story full of action of which can portray true sword handling and other aspects of creating a medieval style of a community.

Great,

This subject moves on. . .

First and foremost is to establish a keep or some form of fortifications. You can not win when your up to your ya-ya's in problems.

First can be simple wood forts or dirt barricades. Shields and polearms for all and arming swords for those who can use them. Close quarters will be the rule of the day for now. Food, water, and protection will be imperative. Training will be a must, without it you will have little chance.
Remember, Location,Location,Location! Where is the water, food supply and can you protect it? Shelter, what kind do you have and how can you improve on it? What will you need and how much time do you have?
A leader leads by example. If he is a fighter, then fight. If he is a planner then he better plan well and have someone to do the defensive work.
This is the way I would start. I'd use anything and everything to keep the enemy out and my people safe.