Building

"Made to be destroyed."

Helicopter

"Made to repair...and be destroyed."

"Helicopter? I barely know her"

Powerhouse

"Protects certain buildings"

Electrolyzed Building

"Take out those powerhouses to destroy me"

Turret

"Pretty self-explanatory, but it shoots at you"

Whirlpool

"DON'T TOUCH THESE, you'll be stuck temporarily"

Shelter

"These guys got to be destroyed last"

ICBM

"Seriously, watch the skies"