With a little luck (read save/load tweaking) the manta in my phillipines base can shoot it down. Moreover, it can shoot it down before the dreadnaught ever flies over japan, or the sea of japan. Even if I manage to down the alien sub well into the pacific, an alien base appears in the sea of japan, and a treaty is signed by japan at the end of the month.
Can anyone save me from being infiltrated?
Attached is a save just before midnight on the 5th of May. The infiltrator will appear in a few hours.