Even MORE Metal Gear Solid 3 help.

Ok, I have yet another problem. On Extreme mode in MGS 3 how the bloody hell do you beat the pain? This is the most irritating battle I have ever been through. It isn't even fun. I can't shoot the guy because he always has his bee's on him, and he only ever takes them off for a few seconds. I can get rid of them with a grenade or the shotgun, but again, that only lasts for a few seconds. I don't have enough time to aim my dart gun in time get him before he puts them back on, and if I do, I usually miss becuase his damn head is swaying back and forth and there is no time to wait for it to come you're way. Is there a useful strategy I could use to make this battle at least fun to lose? The fight with Ocelot was fun even though he whooped my ass until I saved and restored all of my health, but the Pain is just annoying. Any help would be much appreciated.