Here's a fun concept trailer for a zombie film called Delta Zulu. It was created by a little production company called Warehouse 1904, and here's the synopsis:
Humanity has survived what seemed to be the apocalypse, but a threat still remains. Delta Zulu follows Clark, a freelance reporter who will be amongst the few civilians ever allowed into a Red Zone, a lawless quarantine area that still breathes war. Clark has been embedded with a team of mercenary contractors from White Shield International, one of the thousands of Private Military Companies that travel into The Zone on a daily basis to fulfill contracts for the government, large corporations, and private individuals. Clark attempts to find a story amongst a group of forgotten soldiers in a forgotten war and gets more than he bargains for.
The movie looks good, and they've been working on it for a few years. I think you might enjoy it, check it out and let us know what you think! Thanks to David Anderson for the heads up!