Oh for the love of. Do you really think people are going to care how many annoyingly long comments full of random people's names you put up? The people who run this site and the people who make the games will get the badges sorted out when they do, and rattling the bathroom door handle is not going to speed anything up. >.<
I think it just means you got a medal two levels below the one required, or something. Also, try shooting near missiles, that tends to disable them... I usually get over 400 by accident while trying to survive =_=;
Level four is ridiculously tough, given the amount of skill points you have at that point. Of course, once you get used to the exact same order that the enemy types always come, you can figure out exactly what to do... took me disproportionately long to complete, though. On most of the later levels I've played, I didn't even take any damage...
 "The Space Game"){kind=icon}
 "MAD: Mutually Assured Destruction"){kind=icon}
 "Frontline Defense First Assault"){kind=icon}