Because you will not receive any "official" support from the UCA during your mission, you should keep an eye out for additional supplies, weapons and energy supplements.

First Aid Kits
Due to the hostile environment on Cronus, First Aid Kits are hard to come by, but they can be found in most areas. Use 'em to patch yourself up and keep going.

Body Armor
A pilot's best friend when venturing outside the MCA cockpit.  Body armor will take some of the brunt from enemy fire.

Power Units
MCA's are commonplace on and beneath the Cronian surface, so extra power units should be available should you start to run low on energy.

Armor Repair Units
Use these to repair your MCA's armor-they aren't easy to come by, but they can spell the difference between a powered-up MCA and pile of smoldering metal.

Upgrades and Enhancements
Although the UCASF does not issue MCA upgrades or ammo enhancements, you may run across these during your mission.  Reports from the surface include evidence of experimental, high-speed shell casings and radical, new body armor.