Free First Timeauditions What Is A Good FREE Realistic First Person Shooter That Runs On A Mac Without Boot Camp?

What is a good FREE realistic first person shooter that runs on a mac without boot camp? - free first timeauditions

Hey, does anybody know a good free download realistic World War 2 first person shooter Modern Warfare that are running the Mac operating system standard, without training camp and all that? Oh, and have an online multiplayer mode!
Thank you to someone who has one!