As an American I pledge to make it my solemn duty to disprove this slander that says anything other than the Abrams is the best tank ever created

I'm sorry, but as a former US Marine I just cannot believe that it is US Army

training that is the difference.
Serriously though, looks like a good test. I have a few Questions.
1. How many times did you run through each "round"?
2. Did you keep track of the number of hits / misses?