I did see that but I wondered if there are other situations that could replenish points mid-session. I guess that’s the kind of thing that can be determined by whoever’s running it!
Like all 24XX games, there is a lot that's deliberately up to the table to interpret. That said, the back explicitly lists refresh as a mid-mission reward. I'd give the PCs a chance to rest once per mission, and then choose one of the rewards for them during rest.
You could also steal from my other game, 20XX Kitten, and let them refresh when they sleep. Unlike kittens, I'd say a full night's sleep is needed for a human to refresh rather than just a nap.
