"Whether the main city of the Garden is taken down by the Spider Tower and the Oasis or not, the panic-stricken Garden Army is surely retracting its forces and would not dispatch Commanders to gather resources. This is our opportunity..."
Ash's analysis was spot on; he followed the Garden's map to scavenge resource points, which were filled with creatures yet to evacuate and a plethora of resources.
Moreover, he noticed that the resources in the Garden area were nearly two to three times that of other areas. There were two possibilities: either the Garden harvested resources at two to three times the cycle of other factions, resulting in piled-up resources; or the colonial creatures under the Garden's control were two to three times more efficient in gathering, thus able to collect multiple times the resources in the same cycle.
After looting several resource points, the scales of truth gradually tipped towards the latter possibility.
