You go up to the mac turret and walk over the Emiles dead body and melee it and it will show his armor do all the lights like when you get hit its pretty cool but you can only do it once. Then, continue forward in that direction. To take less damage when falling, you can try to crouch just before you land - it's all in the timing - and it can make it so you don't take as much damage when you hit the ground. You should get credits about 10 Credits per minute -- sometimes more. Once you get to the other side, you will find the Data Pad at the end of the rock mountain near the edge on the ground.
Then spawn any warthog variant, but do not set it down yet, take the warthog, and rub it against the landmine.
Halo: Reach Cheats
As soon as you enter the teleporter turn into human form. This playlist can only be used by one person at a time parties of more than one will not be allowed in. Once you are on top of the light stand you can do a Grenade Jumpjump onto the structure behind you, and go up the ramp to find the Data Pad lying on the ground next to another light stand. I do it with my bottom teeth and lip. Then stand on a Flacon and take off with you on top and a friend driving. Jump onto the front of the downed tank and you will see the turret area open. Select either the red, blue, or yellow skull to edit.