[homerun33ss]

I feel like your robot would have to be designed to play defense for the entire game. The way I see it, if your robot is playing defense during autonomous, it would have to block a minimum of 2 of the opposing alliance's shots. This is the only way that your alliance would get anything out of it.
If your robot is defending, that means there are only two robots on your team able to score. To even that out, you would have to block 1 shot, and even then the scoring would still be 2-2 for autonomous (assuming all the other robots make their shots).
If you want your alliance to come out of autonomous with any sort of advantage, you'd have to block a second shot so that the scoring ratio would end up being 2-1 (assuming all the other robots made their shots).