LL Play- Runner at risk after a walk

[lpneck]

Here is play 2. The situation is real, but the play did not happen, I would just love to know the correct ruling if we had tried it.

LL Tournament rules. Top of the 6th inning with the home team leading 1-0. 2 outs and no one on base. We are the visiting team down to our last out. The home team has not met MPR, and decides to intentionally walk the next 4 hitters to allow a run to score to make sure they bat in the bottom of the 6th so they can get subs in.

What if the visiting team had tried this to steal a 2nd run? (With the opportunity to set it up during an offensive conference because of a rare situation where they knew they were going to receive a bases loaded walk) After the walk, R3 jogs slowly towards home. In the meantime R2 sprints towards 3rd and rounds it. As he comes up on R3, both players sprint to the plate.

*IF* the defense defended the play, and tagged R2 before R3 crosses home plate, what is the ruling? R2 is obviously out, but what about R3, who was forced in on the walk? Does his run score anyway?

In real life we didn't do anything crazy, the next batter made an out and the top half of the inning ended 1-1. The home team scored a run in the bottom of the 6th and won the game.

Thank you!