TSF versus Fort-class

"The State of the World". The gigantic Fort-class BETA assaulting the Imperial Japanese Army fortifications on Sado Island are invulnerable to the Type-77 Gekishins' 35mm chainguns, so Alpha Squadron targets the joints with 120mm armor-piercing shells and are able to bring down several before Kusano Tetsuya makes a mistake and is trapped under a falling Fort-class at the inner defensive wall.

Example of:
Attack Its Weak Point