Hi Lusche -
I just went online to do some testing, attacked a Vehicle base and each time I killed an Auto Ack, it told me it would be down for 43 minutes. I went to the object settings and I believe the downtime there says 30 minutes. Is it not displaying the correct programmed value? I assumed these were the downtime settings assigned by the person who set up the arena. There aren't any items with a 43 minute downtime listed, however "Structure" is listed at 45 minutes, whatever that is.