From Halopedia, the Halo wiki
This article is about a cut campaign level. For other uses, see Guardian (disambiguation).
The level would have introduced a new enemy called "the Guardian", a large Forerunner machine with an eye-mounted beam weapon which the player would have been able to wield as a weapon. Part of the level later became the multiplayer map Guardian, while another part (that involved a Hornet air battle) was transferred to a completely different level, The Covenant.