Guts of Steel
This mod makes making a Cacodemon swallow a Sticky Bomb/Frag Grenade no longer automatically stagger.
Instead, this weakpoint is now better used to temporarily hold off a Cacodemon (or a group of them) while you’re busy doing other things. Since you can no longer easily stagger Cacodemons for a free Glory Kill this way, you have to consider more complicated stagger set-ups. Note that the swallow does still deal 1000 damage (as it does in vanilla), so after a swallow the Caco can be killed in three Combat Shotgun shots or one point-blank Super Shotgun shot.
* While making a Caco swallow a bomb does deal damage, making a Caco swallow one will never kill or stagger it even when it technically should. Cacos can still be killed during their swallow recovery animation with your guns, however.