Quick answer
Kill 100 enemies with headshots while playing Halo Campaign Evolved; aim for the head during normal mission combat and the achievement or trophy unlocks at 100.
Guide briefing
Make Them Count Achievement Guide for Halo Campaign Evolved
Kill 100 enemies with headshots while playing Halo Campaign Evolved; aim for the head during normal mission combat and the achievement or trophy unlocks at 100.
Applies to
- — Halo Campaign Evolved campaign missions
- — Players completing the main story or other achievements

Target
Understand the Make Them Count requirement
- Checkpoint
- Before the headshot total reaches 100
- Landmark
- An enemy whose head is visible during combat
Do this
- 1Set the requirement at 100 enemies killed with headshots.
- 2Use enemies encountered during ordinary mission play to build that total.
Confirmation
The source presents this as a campaign-long total that can be earned during normal mission play.

Target
Accumulate headshots naturally
- Checkpoint
- While completing missions, the main story, or other achievements
- Landmark
- An enemy head centered in the aiming reticle
Do this
- 1During the objectives you already plan to complete, move the reticle toward enemy heads as often as possible.
- 2Continue through mission combat instead of stopping the run after a missed headshot; later enemies provide more attempts.
Confirmation
You are following the demonstrated route when head-focused aiming is folded into normal campaign progress.

Target
Reach the 100th headshot kill
- Checkpoint
- After repeated headshot kills during campaign play
- Landmark
- The achievement or trophy notification
Do this
- 1Continue landing headshot kills until the total reaches 100.
- 2At 100, verify that the Make Them Count achievement or trophy notification appears.
Confirmation
The source states that the achievement or trophy unlocks once 100 headshots have been completed.
