I believe that the way to make the campaign playable over and over again is to not just have 30 seconds of awesomeness repeated over and over again, i believe that the key lies with how the levels play out.
In every level there needs to be more than one way to get to the objective.
Think about “The Covenant” in Halo 3. I don’t know how many times i did that level. I did the first half in a Warthog, a Mongoose, and even an AA Wraith via the glitch. Then the massive scarab battle. It gave you an option on how to tackle them. Do i air assault by Hornet? Do i hijack a Banshee and shoot its core? Do i take out it’s legs with mass firepower from the Scorpion? Do i rush it with a Warthog and board it with a huge jump? Or do i drive round like a headless chicken on a Mongoose?
That level had much more variety than it first seemed. it was one of the best levels for vehicles in the game.
Halo 4 needs to have this variety. I want to be able to pick whether i crawl up a beaten slope with a sniper rifle to pick off the enemies one by one. I want to ride a warthog and run the same enemies over. i want to be able to take to the sky and fly over all of them.
There needs to be multiple ways of doing the level, so it’s not just same old, same old. If there’s more than one way i don’t want to end up doing the level the same way, but on a slightly different path (I’m looking at you, Winter Contingency). It really has to have completely different ways. Maybe you could cut through a building jam packed with enemies, but have a shorter way to the objective, or have a long drive round admiring the scenery but avoiding most enemy contact.
I want the spawns to be semi-random, so it’s not just (for example) nothing but grunts and jackals. why not have the occasional heavy enemies in areas you wouldn’t expect to see them?
Why couldn’t we have this sort of variety in the campaign?
I can’t see a single reason not to!
Thanks guys
EDIT:
Secondary Objectives:
Think of it as you go through the campaign, and find a dead marine (or radio like on reach) and basically if you hear through the device of an area where a group of marines or a pelican or something has crashed, and it only spawns once the broadcast is listened to. When you get to the location, maybe you have to backtrack through the level and stuff, you could be rewarded with extra firepower with weaponry, marine reinforcements after helping out, or even and extra vehicle for the level.
seems kinda weird that they would only deploy troops in front of you, and not a little behind you so they could flank you. or you maybe don’t even have to find a radio, maybe cortana picks up something on a com, and she gives you the option to listen or get on with the objective? we could hear the chief speak during these parts, deciding whether or not they should help out. Think if you’re sniping and don’t want to give away your position, or do you rescue and have extra marines, but with all the enemies knowing where you are?
These choices could make the game a little spicy as well!
added in some extra info that some people missed who didn’t read my other post 