No ARA San Juan (it was retrofitted recently to carry nukes) is the best sub (maybe) on the planet…they will NEVER find it if it doesn't want to be found. All wargaming scenarios it KICKED the asses of every US ship/sub etc and single handedly won the 'game'.
I believe Q is AI…I like their style
Could be a Programmable Matter signature…ya know from those new black chemtrails…with enough programmable matter particulate in the air you could use it as a resource to stop missiles or bullets or anything else you wanted via frequency…you would simply send out a frequency [Ghost signal] that would alter the air resistance…see 9/11 steel disintegrating…lots of speculation that Programmable Matter was used to vaporize steel in free fall…would make most guns, bombs and bullets irrelevant. Could be the 'answer' to Russia's HIVE tech.