Halo 3 Achievement Guide Landfall, Holdout, The Road, Assault, Cleansing, Refuge, Last Stand, The Key and ReturnCampaign Complete: Normal, Heroic & Legendary.You should do the whole thing on legendary, with 3 other people, this means that there will nearly always be a person to respawn with if you do get killed. If you don't have anyone to complete the game with, then if you leave a second controller on signed in as xbox live guest, then he will not move, so he will always be back, out of the action, so that you can slowly but surely hack away at the covenant army, and not have to worry about reverting to your last checkpoint.
All this will give you 17 Achievements for 680g, thats a pretty quick 680g to say the least. (:
IronSierra 117
After Freeing Johnson and killing all the covenent that come in the phantoms, walk to the Pelican that comes to pick you up. Face the cargo bay but instead of hopping in, turn left and follow the path. Once you hit the wall jump up to your right, eventually reaching a walkway. Walk all the way to the end, take a left, then a right, then at the end of this little bit to the right is a dark corner. Turn your light on and you should see the skull. If you cant see it you're probably standing on it.
Black EyeCrows Nest
From the start without moving anything you can see a massive pipe above you. Walk up the stairs then up the next set, turn to your left and jump up on the shelf unit. From there jump to the red cross beam then up onto the pipe, from there just walk to the end and walk over the Black Eye skull to claim it. You don't have to pick this one up it does it automatically.
Tough LuckTsavo Highway
After you have to deactivate a shield that's blocking the road, you will exit onto a bridge and a giant covenant ship flies overhead. You need to get out of your jeep if you are in one and go to the right side of the bridge, then go underneath and you will see bridge supports jutting out into the canyon. Jump onto the one farthest to the left and go to the edge and turn left and you'll see a small jut out of the cliff with the skull on it.
CatchThe Storm
You can get this by performing a grenade jump off a warthog, or grab a ghost and go back to the ramp from which you first came out, using the ghost to push a big square crate back over to the front of the silo that the skull is on top of, then use the box as a place to jump from.
FogFloodgate
As you are walking down from the anti-air gun you destroyed in the previous mission, you encounter a ramp (next to a missile launcher). Around this ramp, you hit a checkpoint. At this point, you should also hear a marine yelling, “There! Over There!”. Look up and to the right, directly at the roof of the building next to the missle launcher. There is a single flood form (not to be mistaken with the two other flood forms jumping in front of you) which is holding the skull. Kill him before he jumps, and he will drop the skull down to the ground where you can retrieve it. Too early, and the skull will get stuck on the roof though, so just time it carefully.
FamineThe Ark
When you first go into the valley to the right after the wrecked phantom, look to your left where you will see a huge boulder. Use a ghost and get to the side of the boulder that is closest to the bridge overhead. It is easy to pilot the ghost up the side of the wall using the thrust. To get the skull, pilot 2 ghosts up the wall to the top of the bridge and stack them one on top of another next to
the beam where the skull is placed. Simply jump from the top of the ghosts towards the skull and land on the beam.
ThunderstormThe Covenant
After you shut down tower 1 and get access to the hornet, fly to tower 2 (the one the arbiter shut down). While walking up the stairs, go to the middle part that connects both and there should be a stair leading up to a platform where the skull is.
TiltCortana
After you see a dead Elite with a sword on the ground, you will fall through a fleshy hole. You should be in a large room with a bunch of purple machinery. In the middle is a small purple pedestal with an arrow on it, pointing up. Jump on this, then look up to the left and jump on the rock formation. Look up and left again, then jump to that. Walk across the thin bridge and the skull will be on the ground here.
MythicHalo
Follow the normal path till you reach a cave, then hug the right wall until it branches off into a small path, at the end of this path is some rubble and in front is the skull.
'Phew', now onto the rest...
Graduate5 EXP or 10 Games, simple.
UNSC Spartan20 EXP, simple again.
Spartan OfficerGet 50 EXP in a single playlist, this can be done by winning 25 games in the double EXP weekend, or quickly in rumble pit or team doubles; all of these are good.
Two For OneFor this achievement try waiting for two people to have a small fight up the golden grav. lift on Construct, this often happens.
Too Close To The SunAt the start of the Covenant you get a spartan laser, and about 1 minute through get ambushed by Banshees, easy online on Valhalla.
Triple Kill And OverkillIn Lone Wolves, Swords on Epitaph is the easiest way, as many people don't know you should use 'B' for melee instead of 'RT', as melee is much quicker, only use 'RT' when assassinating or lunging.
Lee R Wilson MemorialIn Lone Wolves, tell yourself that you are only going to get kills from plasmas, not anything else to avoid distractions, then its simple.
We're In For Some ChopOn Avalanche wait around by the ghost respawn point, as that is also a mine respawn point, and a frequent bypass for Warthogs, just throw the mine directly at the Warthog, or try this on Tsavo Highway at a Chopper.
Killing FrenzyThis will just come with skill in Lone Wolves.
Steppin' RazorIn Lone Wolves, Swords on Epitaph is the easiest way, as many people don't know you should use 'B' for melee instead of 'RT', as melee is much quicker, only use 'RT' when assassinating or lunging.
Mongoose MowdownThis is easiest on Lone Wolves, on High Ground, Isolation or Ghost Town, once again its just perseverance.
Up Close and PersonalJust weaken your foes with the BR or Assault Rifle then beat them down.
Fear The Pink MistDo this on campaign, five kills with the needler.
Headshot HonchoIn the campaign on the mission "The Ark" you start with a sniper. You will have to kill 10 enemies without dying for this. In the first battle (the circular prison yard), keeping firing on the enemies (with headshots) until it unlocks. Some people say they had to get only headshots to unlock it, but I killed one enemy with two body shots on accident, then killed two more with headshots and it unlocked.
Used Car SalesmanDuring the campaign you can get this by blowing up the area of a Covenant dropship (giant purple ship) where the turret is and for some reason it awards this achievement. Some people have got this by blowing up the front turret, some have got it by blowing the the side turret that is manned by an enemy, so try both. There are plenty of these ships in the campaign, any of them will work.
Marathon ManTry Youtube, any questions, i'd be happy to help.
MVPGet the most kills in a game.
Maybe Next Time BuddyOn Rats Nest, you should be able to get this, as people are constantly jacking you.
Meta-Game MissionsPlaying on harder difficulties, turning on skull and finishing quickly all give large multipliers to your score.
The "Bungie recommended" method is playing on Heroic with 1-2 skulls on. I personally did these on Normal with the skulls Fog, Catch and Tough Luck.
Alas, Poor YorickOn Rumble Pit, wait until you get oddball then stay down in the little gap at the bottom of the red grav. lift.
Maybe Next Time BuddyOn Rats Nest, you should be able to get this, as people are constantly jacking you.
Double DoubleOn Avalanche, if you manage to get a Warthog turret or a different good vehicle it'll be easy.
Came...From...BehindOn Ghost Town get the invisibility and then wait for people to snipe from the ruined house opposite the invisibility.
Defend ThisOn Avalanche, once you have the flag hide behind the wall round the side of your base, so that no-one can come from behind you, make sure you are backed into a corner.
Flag DroppedOn Avalanche, get a hornet and wait for the flag carrier to get a lift in a vehicle, kill him, then as soon as he dies, the driver will try to get the flag, then kill him as they will probably only have BRs or Assault Rifles.
Road RageSimple, do it on Avalanche.
Look Both WaysAs you can do all the legendary achievements on mythic maps, in the playlist, Team Mythic, get into a chopper and boost when needed.
Hammer TimeTry this when you get Team Hill on Team Mythic, then people aren't focusing as much on killing you on Assembly.
Post MortemAs soon as your shields are depleted, throw all plasmas and frags on Orbital.
...Get The HornsGrifball on Grifbox in Team Mythic.
Aww, Too BadKilljoys are easyyyyyyy =P
KilltacularGrifball on Grifbox in Team Mythic.
Have Fun RespawningGrifball on Grifbox in Team Mythic.
Save This FilmThe Perfection medal is awarded for winning a slayer game by more than 15 kills without dying or betraying someone. This should be boosted by a party as it is quite hard to get in ranked or competitive social. Try to stay back and let your teammates do the work, and occasionally popping out to finish off someone else's kill.
Delicious BrainsGet yourself infected on a Mythic Map, then go and infect 2 humans try to stealth them.
Zombie RepellerGet to a high spot and head shot 2 zombies with you magnum.
Tank DropperOn Sandbox Forge, just drop a tank on the victim, simple stuff.
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http://www.bungie.net/online/playlists.aspxBy CheesePwnsMe
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