Bastion > Compact Machinery + Self-Repair > Fortress
Bastion - deploy a bastion drone in front of you with the effect of your current shield, cannot deploy your shield normally
Compact Machinery - bastion hp + damage reduction
Self-Repair - increased regen, shorter cooldown
Fortress - less bastion hp, can deploy up to 4 bastions at once surrounding you, bastions dont readjust position and will only rebuild once all are destroyed
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