Two Corpses In One Grave Achievement in Halo: The Master Chief Collection

This achievement must be done on the Normal difficulty (or higher).

After clearing out the initial courtyard of Covenant and making your way to the designated ordinance within the bunker-like structure, pick up the Target Locator weapon. Now, when the doors open and reveal the next area, head on through and make note of the UNSC Warthog that races down the hill toward two Covenant Wraiths. Immediately target one of the two Wraiths (targeting the Wraith on the right seemed to have a greater success rate), and, if the AI is kind, it will drive toward the other Wraith before missiles drop down and destroy both vehicles. If you weren't so lucky, just revert your checkpoint and keep trying until you manage to unlock the achievement.