Here is a video on how to play and win at the card game Caravan for the game Fallout: New Vegas.
A short breakdown on the strategy to win at Caravan is as follows:
- Set up your Caravan deck to have at least three 7's, three 9's, and three 10's.
- Make sure you have at least three 10's in your hand when you start to place cards down on the tracks.
- Place a 10 on each track.
- Find the track the computer is not working on, and place a 9 and then a 7 down on the track, winning that track.
- Do the same method as above on the other track the computer does not have 26 on yet and win the track.