Halo 4 Legendary Walkthrough- "Dawn"

When you wake up from cryo-sleep and grab Cortana, go into the next room and head down the stairs to find a terminal with the chiefs service record. this will bring you up to speed on the storyline and also net you an easy achievement. Head back upstairs, and follow the pathway, after heading down a series of hallways, you willhave to leap from side to side and up the elevator shaft, the camera will pan in the direction you need to jump to avoid the debris, follow these directions to make it to the next floor. You will be attacked by an elite, just follow the onscreen prompts to send him on a nice vacation.down the hallway you will find a large room full of enemies just wandering around.sneak up behind the elite directly in the middle of the room, on the console, and assassinate him, grab his gun and use it to clean up the grunts running around the room. Open the blast doors to trigger a cutscene, and quickly run back into the hallway you came from to find a magnum. Use the magnum to headshot the grunts on one side, then kill the elite on that side, rinse and repeat on the opposite side, use the hallway as cover, and shoot carefully. If you run out of magnum ammo, fire the assault rifle in short bursts for a similar effect. Once you finish clearing the room, follow the directions to an airlock until you reach a long hallway with enemies, use the indents in the walls on the left and right as cover to help you get closer to the enemies, using burst firing to kill the grunts, until you can square off against the elite. Pick up ammo, and turn the corner to run into more elites, spray them down and head down the stairs to reach an ammo rack. Grab the magnum and use it to clear out the grunts and jackals in the next room(shooting the part of a jackals hand that is not covered by the shield causes him to stagger and give you an easy headshot), then use your remaining magnum ammo and your assault rifle to kill the elite. Pick up the plasma rifle and refill your Assault rifle before exiting into the hallway. down the hallway is a large room and two pathways on either side, use the doorframes as cover and clear the grunts out of the middle room, use the plasma rifle in short bursts for far away grunts, but got full-auto on the ones right by the door. Once the grunts are dead, pick up a plasma pistol and "Overcharge" the jackals shield on either side, then switch to your assault rifle to kill it quickly, repeat this on the other side, then lure the elites out toward you, overcharge there shields and kill them with the assault rifle as well, using grenades to keep the shields down and deal extra damage. Once you have dispatched the elites, follow the directions to the airlock and head outside, you should see a Battle Rifle floating by, grab it and go to your left, there should be a small path behind the debris that will hide you from enemy fire and give you a good view of the enemies on the same level as you. Clear the jackals off your level, picking up a covenant carbine as your new secondary, and use the two ammo stations on this floor to keep yourself well stocked. Finish the remaining enemies from your perch before you activate the panel. When the new enemies drop in, eliminate as many as possible from up high, using the walls as cover from the Phantoms cannons. Once the phantoms fly away, head back toward the ammo stations, and kill any resistance you can see from afar. Head down to the lower level and go to the raised platform in the middle of the ship, use it as cover to kill the enemies that remain,and activate the missile to trigger a cutscene. Run like hell back toward the second airlock, and don't stop to kill enemies, most of them will explode before you even reach them. keep running and then trigger another cutscene.