Here is the full list of all 29 Killing Floor: Incursion achievements.
Get 10000 points in Holdout
Get 7000 points in Holdout
Get 5000 points in Holdout
Give the data to Foster
Beat Biotics in Co-op
Give the data to Emma/Patriarch
Beat Paris in Co-op
Dual-wield Zed limbs.
Get 2000 points in Holdout
Get 5 kills while in Zed Time
Kill a Fleshpound with only knives and pistols.
Beat Catacombs in Co-op
Beat Farmhouse in Co-op
Revive your partner in co-op.
Blow yourself up with a grenade.
Kill a boss in Holdout in 1 shot.
Kill a Scrake with only knives.
Kill a Husk with a thrown knife.
Kill a Zed at long range with a thrown knife.
Let's never talk about this again.
Completely dismember a Zed.
Beat a map with only melee attacks.
Beat a map with only guns.
Beat Farmhouse in Solo
Beat Catacombs in Solo
Beat Paris in Solo
Beat Biotics in Solo
Beat game on Hardcore (Hard mode)
Get the "Do Nothing" Ending