here are all the vehicles they got

cr-20 troop carrier ( not many but have a few)

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Nu-class attack shuttle/ Ro class Transport shuttle

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 LAAT-series gunship

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LAAT/C carrier

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All Terrain Tactical Enforcer aka AT TE ( photo above in the LAAT/C image)

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All Terrain Open Transport aka AT OT

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All Terrain Attack Pod aka AT AP  

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All Terrain Reconnaissance Transport aka AT RT

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TX-130 Saber-class fighter tank

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Infantry Support Platform, abbreviated to ISP

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 AV-7 Antivehicle Cannon aka heavy cannons

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Self-Propelled Heavy Artillery (SPHA) walker

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Y wing bomber

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ARC 170 star fighter

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V-19 Torrent starfighter

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BARC speeder

BARC medical speeder

BARC side car with turret

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6 Delta-7B Aethersprite-class light interceptor ( two are kept spare just in case and all of them have there hyper ring docked in the command ship)

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ONI prototypes

thease are given to the fleet to test and see how well they do and here they are

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prototype D77H-TCI Pelican ( has it own hyperdrive and Armoury on board)

there are around 12 of them ( unlike halo it has lazer weapons like star wars)

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prototype M808B Scorpion

there are around a few of them

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Prototype M12 Light Reconnaissance Vehicle (LRV), colloquially referred to as the Chaingun Warthog or just Warthog

there are around a few of them

( instead of the chaingun thow it is fit with a modified Z-6 rotary blaster cannon to act as the turret)

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M831 Troop Transport Warthog

there are around a few of them

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Prototype FSS-1000 Anti-Ship Spaceplane commonly known as the Sabre star fighter

they have around 36 of them so 3 squadrons worth