Could you define what "blocking" is in Mission 10?
In the context of M10, "blocking" means doing something to prevent the other team from scoring M10. Intent is important: you trying to score M10 is different to you trying to stop the other team from scoring M10.
What happens if two robots try to activate the mission at the same time?
If two robots are activating the mission at the same time, all is good- as long as the referee judges both to be trying to score the mission rather than prevent the other team from scoring.
Fred Westling - National Head Referee