I'm french and you don't need to translate. this text has no sense.
I'm ok with you for remove it.

Hi,

I have replayed the mission 2 after have recovered the computer.
After 5~6 minutes when the countdown of the next attack appear the game freeze.

I load a old saved game on the same mission when the countdown reappear the game freeze without attack from aliens.

I'm on Windows 8 64bits for ...