The model tag contains the render model and shader_model references for objects such as vehicles, scenery, and weapons among others. It is not collideable nor animated on its own, and objects may reference additional model_collision_geometry and model_animations tags.

This tag is specific to Halo 1 for Xbox, while the gbxmodel tag is the equivalent for the PC port and its derivatives like MCC. Unlike a Gearbox model, this version contains compressed vertices.

Acknowledgements

Thanks to the following individuals for their research or contributions to this topic:

• Kavawuvi (Invader tag definitions)
• MosesOfEgypt (Tag structure research)