Master Chief is not sure who he should go after.. and doesn't seem to care. Fire Team Zulu's newest challenge is to complete Silent Cartographer and ONLY kill Elites at the highest tier. Spare all other Covenant - run past them, scare them away, do everything but kill them. The more enemy classes you kill, the lower the grade for completion. AI buddy kills don't count against you, but you should minimize them by not bringing any along where possible.
Ambivalent Cartographer
This challenge ends next Monday, the 29th.