How to cheese Father GWhat worked for me for Father G was
to kite him around the center statue thing. You can often get him stuck on one side allowing you to potion up while he's shooting at air. The best way to dispatch him is to learn how to shoot him with your gun. He'll still get off cheap moves. If you shoot him once and it does not make him kneel down, get ready to instantly shoot his next attack and that should do it. Also when he starts turning into a werewolf you can get in a ton of hits while he's transforming. I actually took off like 10% of his life while he was transforming, then one parry was all I needed.
And for gatling m I watched a guy do it by instantly sprinting and shooting him close range really quickly. I did it by sprinting and bashing his skull in with my kirkhammeran,.
When zoning in to the graveyard, to the left when entering, there is a tree with some tombstones around it. Use the axe (he is using one too). Do NOT use the music box yet if you have it, as it will trigger his third phase ahead of time. The strong attack (hold R2) on the two hand axe will strafe through the stones and tree in question. You can just circle around there and constantly use that attack to hit him without him being able to hit you. When he does the first transformation (equips 2h axe) just keep circling, but avoid being completely close to the stones/tree as his jump attack and AE attack can hit you too now. When he does the AE attack, it will open him up for a 2H swing from you too.
You shouldn't really be hit at all doing this, but at most you will use 2-3 health until phase 3. He will turn into the wolf at stage 3, at around 25-30% hp left. When he starts to transform, toss molotovs at him. Should get 2 in before he finishes transforming. Should only require 3-4 before dying. For extra cheese, you can also use the music box if you have it once he transforms. That should get you 2 more shots of molotov.
You shouldn't really be hit at all doing this, but at most you will use 2-3 health until phase 3. He will turn into the wolf at stage 3, at around 25-30% hp left. When he starts to transform, toss molotovs at him. Should get 2 in before he finishes transforming. Should only require 3-4 before dying. For extra cheese, you can also use the music box if you have it once he transforms. That should get you 2 more shots of molotov.