and some weird phasey stuff on the drums.
my guess is small untreated room and bad mic-setup.
seriously, I'm doing that myself (sponsoring bandcontests, not the bad micing

) right NOW I'm mixing 2 songs of the winner of the last battle over here.
you won that thing and the price it to get a proper recording "it's free" is not an excuse, cause basically it's not, you won something worth a certain amount (don't wanna say that this is worth the claimed 1.5 k though)!
sorry, but there's pretty much everything wrong about that recording (not only for metal, I'm sure other recordings won't sound decent as well).
I'd go to the ppl that organized the bands battle and talk to them, they should be informed about the real "value" of the first price and the sponsors they're working with.
so now more specific:
-drums are recorded badly, phase-shit on the overheads
kick and snare too quiet and miced incorrectly for that style (esp. the position of the kick-mic was definitely wrong for metal (as far as I can judje with that quiet kick).
Drums sound like not mixed at all, I could get a better drumsound with the overheads alone!
(listening to "dacadation-count in...is the hihat supposed to be right or left??)
-guitars: a joke, in metal guitars have to be at LEAST doubletracked (in 99% if you're not going for some kind of special effect) and panned widely.
-Bass: is there any processing at all on the bass?
the vox: that's actually the best, not really "modern" sounding, but you could get away with that sound if you're going for a rougher kind of thing like Celtic Frost or so.
I hate talking bad about other engineers, not a good thing and I try to avoid it...
but there are cases where I think shit like that harms the reputation of other (all) engineers as well.
my advice: demand to record another track of that guitar and get ALL the single files as wav or aif 24bit 44.1kHz.
load them up on the Forum's FTP and I'm sure there'll be a couple of forumates here that'll help you to get an acceptabe mix out of the song.
cheers
Lasse