Battle System MechanicsEngineer companies consist of seventy-five skilled soldiers who focus on assisting the main bulk of the army by constructing and repairing fortifications, building makeshift bridges that providing others a better way across narrow rivers, and destroying fortifications and other structures such as bridges and walls. In a normal fight, the engineer companies aren't of much use and so they should avoid getting into combat whenever possible.
Can negate the bonuses that rivers provide
Can destroy, repair, and construct
Almost no Damage Reduction
Poor melee skill
And then suddenly, our walls collapsed.
Engineers are support units. They are meant to assist others in crossing rivers or repairing defenses. The only risky activity they ought to partake in should be the sabotage of enemy structures or the sapping of enemy walls.