Indirect Fire
Inevitably, with large enough weapons, gravity will take it's toll. As you are expected to fire at long ranges, bullets will curve, and big rounds will travel far distances, and be expected to hit them, thus requiring a much more in depth analysis of ballistic trajectory. While the mathematics into trajectory calculations require advanced mathematics and science, at least some basics into trigonometry, angles, and physics calculations can be used to determine how to operate.

Thus, an introductory crash course into indirect fire and ballistic trajectory will commence! While some of it is common sense, in a way, it is good to have the idea squared away in your head before engaging the enemy.