| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Pablo Schreiber | Master Chief Petty Officer John-117 | General Dynamics GAU-17/A | Modified to slightly resemble the M46 Light Anti-Aircraft Gun from theHalogames |
| Pablo Schreiber | Master Chief Petty Officer John-117 | MA5C Assault Rifle | Fictional weapon |
| Pablo Schreiber | Master Chief Petty Officer John-117 | BR55 Battle Rifle | Fictional weapon |