Nacrogen requested that I post this with paragraphs so here it is...

What is this new achievement you may ask: Vidmaster Challenge: Annual (0 points) – After 9/25/08, complete Halo on 4-player Legendary LIVE co-op, with Iron, and everyone in Ghosts.

For a fair warning make sure you secure the Iron skull and activate it before you start. Also some friendly advice... DONT DIE OR ELSE YOU AND YOUR BUDDIES WILL START FROM THE LAST CHECKPOINT AND THEY WILL START SCREAMING AT YOU CALLING YOU A CLUMSY IDIOT WHO CANT PLY HALO AND YOULL BE ALL LIKE IM SRRY AND IT WONT HAPPEN AGAIN AND THEY'LL ALL BE LIKE YOUR AN FRICKIN WASTE OF SPACE AND THEN THEY'LL KILL YOU AND THEN BAG YOU AND THEN YOULL REALISE HE DOESNT HAVE B@LLS AND THEN YOULL BE LIKE LLLOL LLOLOLLOL OLOLOL OLOLOLOLOL OLOLOLOLOLOLOLOLOLOLOLOLOLOLOL THEN THEYLL BE LIKE WWWWWWAAAAAAAAAAAHHHHHHHH AND THEN THEYLL QUIT AND YOULL BE ALL LIKE WAHHHHHHHHHHHHHHHHHHHHHHHHHHHHH SO DONT DIEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

This level is relatively easy. When you start turn around and grab the BR (battle rifle) and shotgun behind you. From then progress through the tunnel until you get to your first battle. there will be a rock to your right once you jump down to use as cover. Take out your battle rifle and start picking them off from your cover and if they get close blow their heads off with a shotgun. Ask your friends to do this too. After most of them are gone (until you feel comfortable to progress) cautiously move forward (NOTE: you might want to stick together so nobody dies that easy or separately to separate the flood. I personally would travel in pairs. If you travel in groups have maybe one person blow groups of them away with rockets or fuel rods although he/she should still carry around a BR or carbine too). Progress a bit further and use the mounds of snow and mini structures that are protruding from the ground and facing the building as cover. At the base just keep on fighting till you get to the top. I cant explain the process on how to fight to the top because all you really need to do is pick them off from mid range or shoot them with ur shotgun when things start getting close. Dont worry the sections of the building are bascically the same so you should get used to it.(NOTE: no matter how shiny that flamethrower at the base of the structure and I dont care if it has a picture of a shark on it DONT PICK IT UP. It will just slow you and your team down and get yourself killed. Also you probubly wont be able to get close enough to the flood to do it anyway.)

When you reach the top it will be total chaos. Have someone dispose of the flood form with the rockets quickly and then use them to wipe out large amount of flood. Then just SHOOT SHOOT SHOOT or....... you can hide and wait till Johnson wipes out all the flood himself (although this can take a long time) make your choice. Go in and wipe out the oracle.

Then come out and walk down the ramp you came up from. Turn around, under the ramp are four brand new ghosts. Take thm up and drive them up the mountain and through the door (I reccomend taking the setinals out first before proceeding on the mountainside because they can be a real pain in the @**.)Once through the door you can be patient until the flood and the setinals to dwindle their numbers down to a small number and finish them or you can charge through the mayhem and hope only your hull is missing. Once in the corridor with all the walking blobs holding the infection forms go around them or shoot them from a distance. Proceed foward until you see a slope upwards. Infection forms will attempt to ambush you there. Dispose of them quickly and then proceed.

Then just stick together and drive cautiously(even though I dont remember the final drivethrough perfectly just make sure ur all togerther and watchout. I assume you've all played through the campaign at least once so you should be able to survive. It will be relatively easy with the boost function. Just dont fall...). After you drive off the ramp feel proud and cheer you just have to do the other 24 NEW achivements!