Skulltaker Halo: CE: Boom
Skulltaker Halo: CE: Boom is an achievement in Halo: The Master Chief Collection. It is awarded for finding and walking over the Boom skull in Halo: Combat Evolved Anniversary remastered mode on Halo. The achievement is worth 5 gamerpoints and can be unlocked on any difficulty.
Before driving your Warthog into the underground Forerunner facility, look straight up to see a series of pipes. Walk along the cliff edge and jump to the pipe mesh.