Thanks, trainer works.
Corey's stage on Deathwish was such bullshit; it's not that it's just hard (which it's supposed to be, of course), but the level design is downright broken. Sometimes enemies hit you even though you're behind a wall, sometimes they see you from half across the map, thrown guns always get stuck in mid-air and doors sometimes give dogs immunity against everything.
With that trainer, I could simply give myself unlimited ammo and fire a single shotgun a thousand times until everything was dead. Next two stages didn't even matter, because you're not even using guns, anyway.
Either way, great stuff. Works nicely.