Chaos Gate: Daemon-Hunters is so great, y'all. You have an elite squad of grey knight specialists and are mulching progressively more corrupted nurglish foes--really gets that 40k flavor saturating and delivers an empowering fantasy
the finest iteration on the XCOM model I've run into, genuinely, with a hefty dose of getting the lore for a setting I care about a lot right. It shows that Aaron Dembski-Bowden was pulled onto the writing team.