I'm going through the campaign on hardcore first time around...
I'm on the level 'Halvo bay military academy: courtyard' and i'm trying to do the declassify mission which is 'finish before poison gas deploys 3:30 - failure will result in death'.
I've tried this a silly amount of times now and it just seems impossible, unless i'm missing something? This is the first part in the game to cause me any trouble at all,.
I can kill all the locust outside and then get inside the building, kill the rager things (that turn red) that are in there, and then by the time i get down the corridor past the tickers and into the next room full of locust the time is up and the gas kills me.
Anyone done this yet? please shed some light on it for me, it's driving me crazy.