Complex sentence: During the test the armor proves to be unable to withstand the canonon round, but with the help of a slave, Cletus (Carl Jackson), he learns that the test firing is deliberate disinformation manufactured for suspected Union sympathizers.
Split into simpler sentences: During the test the armor proves to be unable to withstand the cannon rounds. With the help of a slave, Cletus (Carl Jackson), he learns that the test firing is deliberate disinformation, manufactured for suspected Union sympathizers.