I would say use methods such as use weapons wisely like don't use the rockets on grunts. Stay back a lot and when you hear a brute ordering their troops to throw grenades move and I mean move. Always try and look out of the map because bungie like adding power weapons in secret places. And aim for the head with the battle rifle is helps alot. Another way is to get a friend there are some great advantages one of the main ones are they can spawn you and they also give the foes a little to think about before they run out shooting the weps.
Good luck and if you wanna add me to help you my gamertag is
PT HYP3RRABB17
yes
Sometimes you can just run through the mission without staying for what the game really wants you to do. For example the 3rd mission when you start out with snipers. If you know where to go then you can rush through the mission with easly. The rest i have no clue but my guess is to have drop shield so you can heal yourself if your in trouble but make sure to be out of the line of fire so they wont take out your shield.
To win the game you have to protect the good engineer and wait for Mickey, and Romeo to bring the phantom.
no, they are there on every dificulty.
legendary
It depends on what difficulty you play on, Easy, Normal, Heroic or Legendary
if it is the halo e.c It will say halo live update. halo update has a picture of legendary. like the one where you choose the difficulty on halo. two swords and a skull
You can play through each difficulty and unlock the achievement for it, playing on Legendary will unlock Hard and Normal Difficulty achievements retroactively without having to play through again
you need to be playing on normal,heroic,legendary to find any skull on halo 3
Different skulls are available on each level. You must be playing on Legendary difficulty for them to appear.
I do not think that anybody can beat Halo 3 on legendary difficulty for the same reason i think people cant just pick up a gutair on gutiair Hero and play on expert it takes years of practice to reach the rank of legendary i Nick Thivener have beaten it on legendary
I don't think that Halo 3: Legendary Edition is a game.
Halo 2 does not have a legendary ending. It is the same ending as if you did Halo 2 on easy, normal or heroic.
There may be, Halo Reach is currently in development and is hoping to launch September 2010. There may also be another Halo game including Master Chief, Halo 3 gives you a hint to a new game, there is a hidden ending if you beat the game on the Legendary difficulty.
Every Skull, except the Blind and Assassins Skulls, are only available on Legendary difficulty.source: http://halo.wikia.com/wiki/Halo_2_Skulls