It is advisable to start the game first, then the trainer
Options:
F1 – trainer activation (in the main menu)
F2 – Inf.Health – Immortality
F3 – Inf.Armor – Inf.
Killing Floor 2: Trainer (+5) [1003] {MrAntiFun} Free Download
Armor
F4 – Inf.Ammo – No Reload – Inf. Cartridges
F5 – Inf.Grenades – Infinite. Grenades
F6 – Inf.Money – Inf. Money