Before I get to that, I want to ask something else: how do orcs "do" the worship of Malacath? I know he can be summoned by the (shamans?) of the Strongholds, and there's all the traditions of the chieftains and whatnot--but I'm curious how an orc outside of the Strongholds may accept the code. Obviously out-of-Stronghold orcs don't abide by it as closely, but being the Dragonborn and "fulfilling my destiny" as Malacath teaches (which are the paraphrased words of one of the female orc followers in Skyrim) seems to me like my orc simply "going with the flow" of what's supposed to happen to him.
Now here's where I'm curious: how would my orc react to the world around him? Alright, he's imprisoned--nothing too problematic about that, can think of a number of ways why that would happen. Gets freed, gets told to warn the Jarl of Whiterun about the impending dragon threat, etc. Offered a position in the Companions? Sure, why not.
So he may do that, do all that business, whatever-whatever...
I suppose I'll get to my point: how "loose" is the Code of Malacath's jurisdiction? If my character were to do more "unlawful" things, but had reason for doing so (Dark Brotherhood contract as the Listener, killing in order to blot out the sun and help all Vampires/outcasts, etc.), would he still be following the Code? Like I said, I know it applies mostly to Strongholds, but being an orc who pretty much has to venture through Skyrim and fulfill his destiny elsewhere, I find it interesting that the Code could potentially justify my character doing almost everything in the game as needed.
And as a side note, could a Vampire be considered the same thing as an orc? Would an orc uphold what Vampires are doing to some extent? I enjoy amusing that thought, but... more-or-less, what's your interpretation of the Code of Malacath?