Here is the full list of all 27 Necromunda: Underhive Wars achievements worth 1,000 gamerscore.
Gather a total of 10,000 Resources in Operations.
Complete Story Chapter 15.
Secure a total of 10 Archeotechs at the end of any number of Operations.
Reach Rank 10 with 15 Fighters of the same Gang.
Equip Rank 6 items in all Armour and Weapon slots of a single Fighter.
Simultaneously fill all 3 Implant slots on 5 Fighters of the same Gang.
Have any Fighter receive a Bionic enhancement.
Have any Fighter receive a Maiming Injury.
Finish 1st in 50 online battles with human players only
Finish 1st in 25 online battles with human players only.
Reach Rank 10 with 5 Fighters of the same Gang.
Complete a total of 5 House Requests in Operations.
Simultaneously fill all 3 Implant slots on a single Fighter.
Reach Rank 10 with any Fighter
Equip Rank 5 items in all Armour and Weapon slots of a single Fighter.
Complete Story Chapter 10.
Finish 1st in 10 online battles with human players only.
Play an online battle with 4 human players
Finish 1st in an online battle with human players only.
Play an online battle with human players only.
Reach Rank 5 with any Non-Leader Fighter.
Complete Story Chapter 05.
Finish any Operation Mission with an Archeotech in your possession.
Equip Rank 1 items in all Armour and Weapon slots of a single Fighter.
Achieve a Tier 3 Score at the end of any Operation.
Achieve a Tier 1 score at the end of any Operation.
Finish a battle in any Game Mode.