[Shu Song]

Any robot can play a very good defense, even if it doesn't have "defensive measures". Short range pushing has always been allowed by FIRST and that's all you need to get a shooting robot of target. The robot that can plant itself somewhere and can't be moved will have the easiest time at shooting balls in.

Ideally, the best robot would be one that can shoot on the move, its barrel aimed at the goal all the time and adjusted for movement. But due to the not so accurate nature of the camera, this type of tracking system would be incredibly hard to implement. (if a team has achieved this, I appologize for underestimating)

So really, any robot that can move can play defense just as good as any other. Lots of pushing power isn't necessarily important, because all that is required for a robot to miss is a little nudge while shooting. Granted that great pushing power is never bad thing, it's (IMO) not a very integral part of this year's defense on robots.