Is there a structure that provides BOTH energy AND metal in the base game for Total Annihilation? [closed]
Solution 1:
No, within the base game there is not a structure that provides both resources by itself.
The closest thing I have found so far is part of the Escalation expansion hosted by Total Annihilation Universe: the Core Vault (image below). However, this structure was specifically introduced in the 7.0 Beta of Escalation in April 2014 (see this thread), which succeeds the recalled experiences by nearly a decade.
More information about the Core Vault can be found here.