When I sent my sub with one driller at my opponent's incoming sub with a Martyr, I scrolled into the future and showed me that my sub survived as well as another passing sub that was in it's blast radius survived as well.
Before my sub entered combat with the opponent's Martyr.
http://imgur.com/LFTLHtl
After the Martyr detonated, with no sub being destroyed other than the Martyr's.
http://imgur.com/LfwFr6m