Halo: Combat Evolved Anniversary

The best way to get this is having the infinite ammo skull on and bigger exlosions on!

Play with a partner so you will have more of a chance of surviving than getting frustrated playing solo always take cover you will go down quite fast if you go in guns blazing ( which is a bad idea) if there is not much cover about just keep back so the enimies will have less of a chance of hitting you or sneaking up on you. Also take advantage of all of the veichles aswell they will help alot and a less chance of dying.

Remember to keep calm aswell stressing out or getting annoyed at this one section will not help you every level is possible!

Other than that all seem to be easy achievment i have provided links to the 2 main skulls that should be activated to help alot ( i take no credit for these videos!)

Also if you do want to totaly make sure you are ready for this do a normal playthrough so you get familar with the levels so you know what is coming next and what surprises that comes up and the hunters are easy to kill when you have a partner because you can just spam grenades at them so easy kills :D

Hope this helps all you guys attempting this ( if you vote Negative please comment why i may have missed some points in this) Good luck guys :D

Edit: turn boom off during the maw level as it could be very frustrating! :)

I went through the entire game with the Boom Skull, Banana Skull and Grunt Funeral turned on. This made the game much easier. However for the Keyes and the Maw I'd recommend turning Boom and Grunt Funeral off. The flood carriers really mess you up when they explode and boom is turned on.

Also when I was doing cleanup I went through Pillar of Autumn with a second controller on split screen so I could get the coop achievements. However the second player also received the achievements for finishing the game on legendary, heroic, and normal.

I haven't tried it with another person over xbox live yet but you may be able to get the legendary achievements but finishing a level on legendary with someone who has already finished the game on legendary.

A certain combination of skulls will help a lot, like the "Grunt Birthday Skull" (if you have it, not everyone does) and "Boom" are useful, but there's a cheap and efficient way to do this as well without stressing over dying over and over again.

You can simply turn on another controller and sign them in. No one has to be playing, but A. It's useful in case you die with an important weapon (IE. Sniper on the Truth and Reconciliation level), then the other player will also have this and you can use it twice. B. You can have an easy spawn point in case things get bad. Just be sure that you placed the character you're not using in a safe spot for spawning.