From Halopedia, the Halo wiki
The Ministry of the Environment's Ajax is designed for heavy lifting. The craft is so huge that its wingtip rotor blades may commonly trim fronds and clip vines during a descent. The Ajax's great size does not always afford it a lot of cargo space if it is used to transport a ground convoy.
On December 14, 2553, the President of the Gao Republic, Arlo Casille, hitched a ride on the Ajax in order to avoid drawing unwanted attention during a trip he planned to make to the New Leaf Extractions Field Complex within the Yosavi Diversity Reserve to investigate a series of explosions there.
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