Due to this bug, https://support.keenswh.com/spaceengineers/general/topic/191-023-missiles-teleport-through-ship-armor-not-stations, missiles are temporary disabled. They will still fire but it will be a waste as they only do “1” damage. I suggest making sure you leave all your siege and rockets at home.
Cyber Cheese is working on a work around and Keen has apparently acknowledged the problem. Hopefully this won’t be to long.