patent root
In these pic's you can see some of the assault building at the hub
I think it would be cool to add these into the game (horde & pandemic) as upgrades for their base parts or even add them in as a doctrine
you can see you can add upgrades for the sandbag, hesco, and tall hesco which could add more health for a price
this would basically be a Tier 1, 2, and 3 wall but specialized for the assaults building
this would make people use the assaults more often at the start or even late game
proven crescent