If you were among the group of people who purchased the Xbox 360 bundle with Kinetic with the 4g hard drive and you want to play Halo Reach you might have some problems. First the 4g hard drive is too small. So some people have purchased 4g to 15g flash cards and plugged it into their xbox to play Halo. However, you can’t play cooperation campaign and firefighter with the flash drives because Xbox Live will not recognize them.
Until Microsoft fixes this problem or you upgrade and purchase a 100g hard drive for about $100 to 150 dollars, you will have to sit tight and wait for Microsoft to fix this problem.