May be me without correct setting but whenever I click "start" or "play" after equipping the armaments I hear a thud and the helmet is on the floor next to the chair. When the helmet is hovered over with a mouse there it is highlighted yellow and VRinteractable says Equip when ready. I tried adding "Equip when ready." to the VRinteractable option but it didn't work (likely due to lack of knowledge).
Load into the locker room where you can equip the helmet (after equipping the armaments). There is a thud and the helmet is visible and on the floor on the back left chair leg.