A battlefield 2 patch is similar to a computer virus. The patch slowly degrades the game into a heaping pile of crap. With each major match, a series of smaller hotfix patches are required to fix the many flaws of the major patch. Even after the hotfix patches, the bugs are still rampant.
"OMG BF 1.3 patch is out we're SAVED!!!"
"This battlefield 2 patch is a patch to patch the patch of the patched patch which needed to be patched after the patch before the original patch was patched."