If its not too late in development or even possible could you add a unit that could dig a trench or build sandbags for defensive positions, somthing that could provide a small counter to artillery especially with how accurate the enemy can be with it and a new dynamic to how battles work. It also provides extra tech, perhaps starting out with small sandbags and trenchs with nothing else then eventually evolving to trenches with covered positions for troops to take cover in maybe even barb wire. This would also make cav way more important , having them stall then enemy so your troops can build defenses , them failing means your troops are extremely vulnerable and open to attack. This also makes battle much more dependent on strategy not on if luck is on your side when it comes to their art being accurate and yours actually being able to hit something besides dirt. I love this mod and would love to see it improved especially in this department.