BUG?

So. I was gonna complete the whole campaign in legendary.
i did, in the end.
however, I spent a day or two without Internet (in which I still played), and for some reason, the missions: Prologue, Dawn, Requiem, Forruner And infinity appeared blocked.
i cannot play them, and the “legendary” badge isn’t on them either. I got the armor (Mark VI), But no achievements, and no Legendary ending.
is there’s a way of solving this without the need to re-play the campaign? I’d like to know, please.

You need to be connected to the Internet in order for the game to track your progress. It sucks, I know, but you need to re-do the whole campaign. Check Hokiebird’s guide. But here’s some tips: Always stay in cover. Run out and you’re dead. Always make sure you have a headshot-capable weapon (Magnum, Battle Rifle, DMR, Sniper Rifle, Carbine, Beam Rifle, Boltshot, Light Rifle and, to a degree, Binary Rifle) and a weapon effective against shields (Assault Rifle, Storm Rifle, Plasma Pistol, etc.)
Tips for each mission:

  • The Needler is great in the Dawn, use it well. But always be on the look out for ammo, since it’s ammo capacity is too small; - There’s a Sniper and Battle Rifle’s in the crash site in Requiem that you can use in the first area. Use it to clean up the major enemies (Sniper Jackals, Elites and Fuel Rod Cannons), run up to the closest sniper tower, get the Beam Rifle and snipe some enemies with it. - Forerunner is much difficult, but don’t go after Knights that teleported and kill the Crawlers. Let them escape at will. When you get to the second and third battlefield, make sure you get a shield stripping weapon or the Needler. The Binary Rifle becomes very useful in the third. - Infinity is slightly easier, but make sure all your Crawler kills are headshots in order to preserve ammo. For the first Knight, keep the Assault Rifle and shoot in bursts from the distance, where he can’t shoot you nor teleport, until his shields fail, then finish it with a headshot of the DMR. - Reclaimer: This level is known by some skips. Don’t have much tips for this one tho. Sorry. - Shutdown: Snipe the Phantoms with the Pelican’s laser. They can kill you pretty fast if you let them. - Composer: PP, Needler, Carbine, AR, Mag and DMR. These are the weapons your going to need. - Midnight: This is the most difficult. In the first are, don’t use the SAW against anything except Knights. When you run out of BR ammo, get another weapon, the most effective sadly being the Suppressor if you can’t find a Light Rifle or Scatter Shot. When you get the Light Rifle, use it’s zoom against Knight’s shields, behind cover.Hope this helps. Good luck Spartan.

> 2533275010817669;2:
> You need to be connected to the Internet in order for the game to track your progress. It sucks, I know, but you need to re-do the whole campaign. Check Hokiebird’s guide. But here’s some tips: Always stay in cover. Run out and you’re dead. Always make sure you have a headshot-capable weapon (Magnum, Battle Rifle, DMR, Sniper Rifle, Carbine, Beam Rifle, Boltshot, Light Rifle and, to a degree, Binary Rifle) and a weapon effective against shields (Assault Rifle, Storm Rifle, Plasma Pistol, etc.)
> Tips for each mission:
> - The Needler is great in the Dawn, use it well. But always be on the look out for ammo, since it’s ammo capacity is too small; - There’s a Sniper and Battle Rifle’s in the crash site in Requiem that you can use in the first area. Use it to clean up the major enemies (Sniper Jackals, Elites and Fuel Rod Cannons), run up to the closest sniper tower, get the Beam Rifle and snipe some enemies with it. - Forerunner is much difficult, but don’t go after Knights that teleported and kill the Crawlers. Let them escape at will. When you get to the second and third battlefield, make sure you get a shield stripping weapon or the Needler. The Binary Rifle becomes very useful in the third. - Infinity is slightly easier, but make sure all your Crawler kills are headshots in order to preserve ammo. For the first Knight, keep the Assault Rifle and shoot in bursts from the distance, where he can’t shoot you nor teleport, until his shields fail, then finish it with a headshot of the DMR. - Reclaimer: This level is known by some skips. Don’t have much tips for this one tho. Sorry. - Shutdown: Snipe the Phantoms with the Pelican’s laser. They can kill you pretty fast if you let them. - Composer: PP, Needler, Carbine, AR, Mag and DMR. These are the weapons your going to need. - Midnight: This is the most difficult. In the first are, don’t use the SAW against anything except Knights. When you run out of BR ammo, get another weapon, the most effective sadly being the Suppressor if you can’t find a Light Rifle or Scatter Shot. When you get the Light Rifle, use it’s zoom against Knight’s shields, behind cover.Hope this helps. Good luck Spartan.

Thanks a ton!
Being totally sincere, Halo’s 4 Campaign wasn’t that hard, and didn’t made me rage quit (unlike Halo’s 2 one, both on legendary of course) it was just rather tedious, I consider myself a medium-Good halo player, i don’t have much problem completing missions, it isn’t just annoying to know a lot of my missions I have to complete. Help is appreciated though! Thanks a ton, for real! <3