Perhaps use their service pistols or call in the SWAT team? Not confront protestors with riot shields and high-capacity rifles straight off the bat.
So what about the officers that died today? Do you disagree with the notion that having military grade equipment would have resulted in them still being alive?
When most people refer to the 'militarization of police', they're talking about the emphasis on use of lethal force and deadlier weaponry, not better combat training. Training is fine in my book and doesn't reflect the problems associated with a militarized police force.
Personally I figure that the standard police side-arm is more deadly in a close-quarters street scenario than the average military rifle. A military rifle would mostly provide a tactical advantage in a defensive scenario, much like the one that occurred today in Dallas.
So just so we're clear here- protestors are not citizens?
Violent protesters do not represent law abiding citizens, as far as I figure.