A Question about Singleplayer

Was the singleplayer designed to be hard?

Let me clarify something, I don’t mean playable difficulty. A lot of Halo 4’s campaign was only really understandable to those who put time into reading into the expanded universe and searching for the terminals. For anyone else it just seemed like the Didact was attacking earth for no reason (those who ignored the Librarians speech).

Meanwhile the mutliplayer was designed to better fit the casual player, and it did that well.

Just chucking this out there; Were the two different modes designed to be different?

Your thoughts please

The thing I hate about increasing the difficulty is it doesn’t really make it harder just annoying. You put bullet after bullet into an elite and they keep retreating to regenerate their shields. I ran to and through looking for ammo.

The kind of thing I expect to see in difficulty is how they use their weapons, what weapons do they have, the number of enemies, and varying tactics. I don’t expect to see some one with insane shields.