SILENT CARTOGRAPHER

HALO>SINGLE PLAYER>LEVEL WALKTHROUGH>SILENT CARTOGRAPHER

Ideal arsenal: Plasma pistol and rocket launcher.
Best tip: When you find the door to the map room, park a manned Warthog right infront of the door. When the final Gold Swordsman comes after you, your pals will wipe him out.
Hardest part: The map room entrance platform.
How to beat it: This spot is packed with baddies, so it's best to park your gunners safely away from grenades and then jump out with the pistol to head shot the rest in zoom mode.
Cool thing to try: Go into the water... it looks even better close up.

WALKTHROUGH

    Fight on the beach. Get the Warthog. Drive close to the aliens and let your gunners do their business (help if necessary).
    Stay to the left and fight along tohe map room platform. Use your buddies to clear out the platform, then jump out and protect them from grenades with your pistol. Drive down to the map room and clear it out.
    Drive out of the map room next to the area, clear it out, and look for a passage up the hill. Drive on until you see a Warthog crash site and load up. Return to the passage and leave the Warthog. Head up the passage on foot.
    You'll see 2 Hunters... kill them with your pistol. Get an overshield power-up if you want. Remember, you can side-step their attacks, then hit them in their weak red spots.
    Travel around the side and go into the building. You'll see 2 more Hunters. Power up, then defeat one with the pistol. Go to the top and get another overshield, then return and defeat the other Hunter.
    Continue on to override security. Defeat the 2 invisible shooters. Get the power up. Go to the right side of the platform (if you're facing the water) and jump down to the ledge below and then to the ground.
    Go back to the crashed landing craft and on anything you're missing. Flip the Warthog, drive forward along the beach, and you're back to the beginning. Pick up gunners and passengers and return to the mao platform. Use your Warthog to wipe out the biggies... run them over, then jump out and help your gunners. Once you cleared the top level of the platform, drive down to the map door and park your Warthog and gunners as close to the door as possible.
    In the first big room, take out the bad guy and go right. Use the high ground to your advantage. Go to the 2nd room. Use small guns to take out the regular guys and the rocket launcher to wipe out the Hunters.
    Continue on, but before you go, look down from the edge and you might see a bad guy. Drop a greande or two on him and laugh. Head as far down as possible to accomplish your objective. Then head back up. Run like a little girl if you have to. Save your rocket launcher.
    Now, remember how I told you to park your Warthog at the door of the map chasm? Here's why. It's defeats the Gold Swordsman. Save the rest of your rockets for the 3 invisible guys at the top of the platform. Your gunners will do the rest.