There is an issue with the meteor defense systems not firing while being on steel platforms (on grid). I had 2 installed on my grid, both fully loaded with 400/400 rocket ammunition. There was a meteor shower and they just never fired. My grid had about 245 power supply with only about 115 demand and had over 7000 power stored in batteries on the steel platform grid. I was playing Campaign. Several meteors hit REALLY close to my buildings and the defense system never fired once. Luckily there was no direct hits but if there was my base would have been destroyed, despite having 2 fully operational and loaded meteor defense systems.
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