OK I'm wrong and I apologize. I tried it the hard way ( 1.4 default ) using the "W" key then "Q" but not firing and I got this pic.
All six doors are open. (
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Until the thread I posted in my above post I did not think that worked. Your way using the mod and pv's way do a lot better. I've just fired single shots before carefully timing them. I still like it better that way.......well I'm used to doing it that way.
