Board Thread:Game Discussion/@comment-9605025-20130609024330/@comment-136.166.44.135-20130610140329

There are no R5 weapons. Shockwave's signature weapon for this event appears to be an R4.

As to the medal space bridges, episode space bridges provide a chance at all 3 raid cards including R5 Shockwave. Non-episode bridges do not provide a chance at raid cards to my knowledge.

Bear in mind, saying you have a chance wanders into Lloyd Christmas territory. I doubt Mobage is going to give anyone much of a shot at R5s using medals. My expectation is that the odds there are something in the 6 or 7 figure range. The odds suck even if you're using $30-a-pop paid space bridges, so I suspect your chances of winning a Shockwave are akin to playing the Lotto.