The Club House - A medium-sized, specialized building meeting place for use in table-top wargaming within a generic SciFi setting, played at 6mm scale.
What is this club? Who are the members and their associates? Why is the building that shape? What do they do in there? When do they meet? - who knows...? Maybe it's a secret club.
Rage at the affront of these unknown (and perhaps unknowable) secret matters going on inside this exclusive clubhouse, and then destroy it with an alpha-strike or physical attack from your Mecha.