The vikings didn't run a double reverse. I'm not sure I recall them actually running a reverse!
End around = QB hands off to WR with blocking in front. This is what you kept seeing. Often with a play action fake to the RB first. It's still an end around. Not a double reverse.
Reverse = QB hands off to player with blocking in front, and then player hands off to another player going in the reverse of the play's flow. The most common reverse I see in the NFL is a sweep to the RB who then hands off to the WR coming around the back.
Double reverse= QB hands off to player with blocking in front, who then hands off to player running opposite direction, who then hands off to another player running in the direction of the play's original flow
NFL teams never run double reverses. You have too many guys taking and receiving hand-offs who are not used to it.
