Quoted from Jesder:
From what I understand, yes you just get the 1 KNIGHT letter from each monster and 1 for completing WAR hurry up.
Further to these two methods I commented on yesterday, I was reminded while playing today that Mystery can also award you a Knight letter. Although this seems to not happen all that often. I've seen far more 250K and 750K mystery awards (thanks Tim). So there are 3 methods I know of for being awarded Knight letters.
With regards to the difficulty being "increased" to medium in the up coming update. It looks like the new "medium" difficulty is the same as the current easy setting for some (but not all) monsters.
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Tweaked the number of mode shots required to complete modes.
Molten Fire (Magma Beast)
- Easy: 6 shots to complete. 2 shots for KNIGHT letter.
- Medium: 8 shots to complete. 3 shots for KNIGHT letter.
- Hard: 10 shots to complete. 4 shots for KNIGHT letter.
Wicked Cavern (Hell Hand)
- Easy: 6 shots to complete. 2 shots for KNIGHT letter.
- Medium: 8 shots to complete. 3 shots for KNIGHT letter.
- Hard: 10 shots to complete. 4 shots for KNIGHT letter.
Mud Bod (Hydra)
- Easy: 3 heads sealed to complete. 1 sealed for KNIGHT letter.
- Medium: 4 heads sealed to complete. 2 sealed for KNIGHT letter.
- Hard: 5 heads sealed to complete. 3 sealed for KNIGHT letter.
Deep Freeze (Lich Lords)
- Easy: 3 liches defeated to complete. 1 defeated for KNIGHT letter.
- Medium: 4 liches defeated to complete. 2 defeated for KNIGHT letter.
- Hard: 5 liches defeated to complete. 3 defeated for KNIGHT letter.
Burning Sands (Sand Worm)
- Easy: 6 shots to complete. 2 shots for KNIGHT letter.
- Medium: 8 shots to complete. 3 shots for KNIGHT letter.
- Hard: 10 shots to complete. 4 shots for KNIGHT letter.
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As it is right now on easy mode from the 1.00 code, the current hits for Mud Bog is 4 heads. In the up coming update, medium is 4. Similar deal with Deep Freeze. Currently you need to defeat 4 Lich Lords on the "easy" setting in 1.00. The upcoming code has 4 hits for medium.
I think they have increased the hits for molten fire and Wicked Cavern though.