Hardcore Mix.........need help with vocals and cymbals...

Drop the highs on the cymbals. Heaps. You don't want them to be that edgy bro!! Probably around 8-12k, by about 3 or 4 db should do it nicely. Maybe not even that much.
Also, I can't stress enough how much you need to use a pop filter on the vox when you're tracking! If you aren't already, replace the kick with a sample and turn off dynamic tracking.
With the vox, compress them like 16:1 at -30db and edit out the garbage. This will really squash them into the mix. Probs bring the snare up a bit too!
Other than that, pretty acceptable mix!
You shouldn't need to sidechain the snare btw.