Starting pacing could be better.
Enemies in first zone have 40-50hp while the boss has 600+
There needs to be a way to do a zone without getting the boss attack or you have to run far too many runs to get resources, and extract before the boss fight ever time.
A run can be 2-3 minutes, with a 2 minute cooldown for rest bonus.
If you let us run indefinitely in a zone, we can at least grind resources before the first boss fight.