Right boys- we have been warned early- thats the good news.
Stage 1 - its like a game of red alert- you need to turtle. Get to Tesco before the infection reaches you (im in cambridge, quite far from liverpool). Get lots of supplies. Get stuff to barricade yourself in the house with- make one room "super-safe", with multiple barricades and a heavy bed etc in the way of the doors- so no zombie could get in. Protect this supersafe room with all you have!
Stage 2 - Find a good weapon- If l4d2 has taught me anything, the lesson is get a guitar! Or more seriously a bat, chainsaw or whatever you can find.
Stage 3 - Steal a 4x4 and park it in your drive. The police will be too busy to care. (n.b. dont steal from your neighbours as they will see their car and take it back

).
Stage 4- WAIT IT OUT- Zombies scratch at the door, they break through the downstairs window, but you run upstairs to your ultra barricaded bedroom. Your friend doesn't make it and is eaten alive on the stairs. It's too late for him now though!
Stage 5 - the RUN FOR IT. Remember that stolen 4x4? Did you remember to fill it up? If not = D'OH. If so = drive to the coast.
Stage 6- obtain a boat, with a sat-nav.
Stage 7- go to Oil rig. Wait 1 year until all zombies gone.
Stage 8- great success!