aliens fireteam elite 2 achievements: Step-by-Step Guide

The aliens fireteam elite 2 achievements list contains 30 objectives for a total of 1,000 Gamerscore. The requirements cover campaign completion, difficulty progression, enemy eliminations, kit development, weapon customization, cosmetic collecting, Challenge runs, and Horde Mode.

For the current achievement list, use the Aliens: Fireteam Elite 2 achievements directory on TrueAchievements. It identifies the six campaign achievements, the difficulty requirements, and the major progression targets without requiring players to treat every objective as a separate grind.

Video Highlights:

• The achievement list is divided between story, combat, progression, customization, and special modes.
• Several objectives can be advanced naturally while completing the campaign.
• The final cleanup phase is easier when kit, weapon, and collectible goals are tracked separately.

The campaign achievements are Welcoming Committee, It's a rescue mission, you'll love it!, Worst Party Ever, Canary, The Story of the Quarry, and Reckoning. Their requirements are direct: complete the campaigns named in each description.

The difficulty achievements create a natural progression path:

• Legionnaire's Service Medal: Complete all campaigns on Casual or higher.
• Hardened Trooper: Complete a mission on Intense Difficulty.
• Noble Soldier: Complete a mission on Extreme Difficulty.
• Fervent Warrior: Complete a mission on Insane Difficulty.

The most reliable route begins with campaign completion rather than immediate collectible hunting. Story achievements establish familiarity with mission layouts, enemy behavior, and the higher-pressure moments that matter when moving into Intense, Extreme, and Insane difficulty.

The available campaign objectives are tied to these names:

Difficulty achievements reward a measured approach. Hardened Trooper, Noble Soldier, and Fervent Warrior each require only one mission at their respective difficulty, while Legionnaire's Service Medal requires every campaign on Casual or higher. That distinction allows you to secure the broad campaign milestone before focusing on the most demanding single-mission requirement.

Combat achievements form the largest repeatable category. The list includes cumulative eliminations for four enemy types, a headshot target, and a no-friendly-fire mission objective. These goals are best handled as long-term progress rather than isolated tasks.

The 10,000 Xenomorph requirement is the broadest combat target, so it should progress naturally during story and difficulty runs. Pathogen, Synthetic, and Combat Automaton eliminations are more specialized. When one of these counters remains incomplete, choose missions based on enemy availability instead of repeatedly replaying a general campaign segment.

Headshots can be built into every mission. Accurate weapons, controlled bursts, and deliberate targeting are more useful than rushing toward the total. If a mission contains mixed enemy groups, prioritize headshots on exposed targets while preserving ammunition for elites and defensive sequences.

Pure Professionals requires a mission on Intense Difficulty or above without anyone taking friendly-fire damage. Treat this as a squad objective:

• Assign clear firing lanes before each encounter.
• Avoid shooting through teammates during close-range engagements.
• Communicate before using explosives or other area attacks.
• Restart when the team takes friendly-fire damage if the run is specifically for this achievement.
• Choose a mission your group already understands.

The progression achievements are spread across kits, perk boards, weapons, attachments, augments, and cosmetics. Because these systems overlap, a simple inventory routine can prevent avoidable backtracking.

A focused kit plan helps with Seasoned Veteran, Custom Made Marine, and Maxed Out. Level one kit toward Rank 10 while also completing the five missions required with the Specialist Kit. Once the perk board becomes available for adjustment, fill every slot rather than leaving the achievement until the final cleanup session.

Weapon progression has two different goals. Hell and Back asks for one weapon at four stars, while Well Stocked Arsenal asks for 10 weapons at two stars or higher. Start with the broad requirement by advancing several weapons to two stars, then select a favorite for the four-star target.

Customization objectives are easy to overlook because they are found in menus rather than mission rewards. Review sidearms, gun colorways, decals, attachments, augments, and character cosmetics between missions.

The remaining objectives cover hats, weapon attachments, augments, Challenge runs, and Horde Mode. These achievements are separate from campaign completion, so add them to a dedicated checklist once the main route is stable.

The collection objectives are easiest to monitor through a written record. Mark each hat, attachment, and augment as it is obtained, then compare the totals against the achievement descriptions. This approach avoids confusing equipped items with collected items.

Worthiness Tested is less demanding than the cumulative combat goals because the listed condition is to attempt a Challenge run. You do not need to treat it as a full completion challenge unless another objective requires that outcome.

For Wave Goodbye, prepare for survival rather than speed. Horde Mode asks you to survive five waves, so conserve resources, maintain safe positioning, and avoid unnecessary exposure. A defensive setup can be more valuable than a high-risk damage build when the only immediate target is reaching the required wave.

A practical cleanup order is:

1. Finish any missing campaign achievement.
2. Complete the required Intense, Extreme, or Insane mission.
3. Check enemy counters and headshot progress.
4. Upgrade kits, perk boards, and weapons.
5. Review customization and collection totals.
6. Attempt a Challenge run and survive five Horde Mode waves.

Use this final checklist to verify each category before considering the 1,000-Gamerscore list complete.

The TrueAchievements achievement page lists the game at 30 achievements worth 1,000 Gamerscore. It also identifies the Xbox Series X|S and Windows versions, along with cross-play and Xbox Play Anywhere features in its game information.