Xenophobia

Xenophobia is an achievement in Halo: The Master Chief Collection. This achievement is obtained by completing any Halo 3: ODST level without using Covenant weapons.

Strategy

 * Uplift Reserve is the recommended level to earn this achievement. Simply use warthog and drive all the way to finish the level.
 * Due to the level sets in daylight without a place where VISR is unnecessary, it can be also obtained together with Deference of Darkness achievement.
 * If the player first time play this level and up to the Legendary challenge, the player has a chance to earn Triple Achievements.
 * First is Vidmaster Challenge: Classic where the player can use warthogs to punch through the enemy.
 * Second is this achievement.
 * Last is the Deference of Darkness Achievements.