Honour Mode is, in theory, just a Hard Mode mixed with Ironman. In practice, however, it is solely the domain of players that have experience with the game. Honour Mode is 'intended' for players that already have foreknowledge of every puzzle, outcome, and ambush and can use their veterancy to optimize and outplay the entirety of the game's content; otherwise the content and mechanics will harshly punish the player for mistakes and unpreparedness.
It is possible to complete the game on Honour Mode completely blind, I would have accomplished that myself if it were not for a certain impish device; but it certainly is not recommended or accommodated for in the slightest.
