There is a “secret” button to enable Arachnids in the boot camp tutorial (VR simulation).
Enable Arachnids in the boot camp tutorial
Go to the boot camp tutorial which can be found in the main menu.
After you have spawned, go the two crates which stand near you. You will find a hidden button to enable Arachnids. The Arachnids will spawn once you have completed the last training objective.
