Which first-person camera settings (FOV, head bob, weapon sway, camera shake, blur) should a game plan expose to avoid player discomfort, and what do the sources actually establish?

Partially verified: the curator re-read none of the cited sources; S2, S3, S4 rest on the producer's pinned reading. Microsoft's Xbox Accessibility Guideline 117 (page dated 2026-10-20) states that mismatch between seen body movement (walking-bob, weapon-sway, head-bob) and a stationary player produces motion sickness, and tells developers to offer adjustable FOV and the ability to reduce or disable camera shake, bobbing, motion blur and weapon sway, naming shipped games as examples. Two arXiv abstracts concern VR first-person-shooter sickness mitigations (rotation blur; teleport and visual reduction); only the first abstract reports a result (lower sickness, later onset). No inspected source gave a default FOV or bob amplitude; Xbox gives only that Minecraft's FOV goes up to 110 degrees. Curator qualifications: Partially verified: the curator re-read none of the cited sources; S2, S3, S4 rest on the producer's pinned reading. Curator GET 2026-10-23 of the sources not re-read (mechanical source evidence, not semantic verification): S2: HTTP 200, bytes differ from the producer pin; S3: HTTP 200, bytes differ from the producer pin; S4: HTTP 200, bytes differ from the producer pin. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

{
  "citations": [
    {
      "url": "https://devdocs.xbox.com/build/game-principles/accessibility/xag-deep-dives/xag-117-visual-distractions-motion",
      "note": "Xbox Accessibility Guideline 117 (live; bytes equal pin)"
    },
    {
      "url": "https://arxiv.org/abs/1710.02599v1",
      "note": "Xbox Accessibility Guideline 117 (live; bytes equal pin)"
    },
    {
      "url": "https://arxiv.org/abs/2107.08432v1",
      "note": "Xbox Accessibility Guideline 117 (live; bytes equal pin)"
    }
  ]
}