Bug Invasion

 is the fifty-second offline mission and the fifty-sixth online mission in Earth Defense Force 2025 and the fifty-fifth offline mission and the fifty-ninth online mission in Earth Defense Force 4.1: The Shadow of New Despair.

Objective
2025:

4.1: We have confirmed spider-type giant insects. A Wing Diver squad is already in combat, but they're heavily outnumbered and will be wiped out in no time at this rate. Head to the location, and consider this a rescue mission.