Centers
From Mechabellum Wiki
Every player controls two centers. The Command Center and the Research Center. Upon destruction of a center, that players units will temporarily be slowed by 80%, do 90% less damage and take additional damage until the effect wears off after 13 seconds.
Additionaly, players can unlock technologies and round bonuses in the centers.
Command Center
Command center upgrades only last one round
Research Center
Research Center upgrades are permanent