User blog comment:Shinhwalee/Guide to Power Leveling Heavy Cruiser (CA) in World 3-2A/@comment-112.198.64.29-20150331134743/@comment-3502824-20150401193012

Frankly speaking I would just restock all fuel/ammo.

Failing to do so will decrease your support's performance even if you don't want them stealing MVP which may cause trouble for you because the supports failed to clear other remaining enemies.

Also, remember that if you don't refill your fuel and ammo, in the end they will be unable to even sortie due to the system. So in the end you have to refill their supply anyway.

For submarine you could avoid refilling ammo, but come on it is only like 4 ammo.... =w=;;