One other idea I posted a while ago in a different discussion was to give an infantry unit the ability to build “Field Fortifications”.
The Infantry would have a cooldown, so they can’t just be spammed everywhere. Like Walls they would cost some res (prob a bit of stone and wood) and also require some building time. Their cost would probably be significantly higher than that of palisades, like 4 S + 6 W or something like this.
But there would be notable differences:
A) Field Fortifications naturally expire over time
B) They can be placed, built AND passed on/by allied units, but not by enemy units. Meaning you can place a field fortification on the very tile you’re standing on, as long as no enemy unit is on it aswell.
C) They block all enemy projectiles (including mangonel shots) that try to pass over them. But they take damage from these projectiles.
D) Units standing ON the Fortifications don’t take ANY bonus damage
The listed features also imply, that units which stand on the Fortifications can attack/be attacked by melee units of the opponent. Kamayuk and SL theoretically can even attack through the fortifications.
It also implies, that you can build them in proximity to opponent walls. Whiltst your units standing on the fotrtications, they can attack the walls, but can’t be damaged by opponent ranged units trying to defend. Monks defence should work though. Also Mangonels after they destroyed the fortifications with their high damage output.
I think this could make very interesting battle tactics. I tried to give it basically even synergy with the main unit types. Whilst archers might benefit from the blocking of enemy movement, cavalry benefits from the blocking of enemy projectiles and bonus damage.
And for the Infantry itself the ability gives them finally the pretty much needed “disengage” utility they don’t have atm.
I think this is a way better way to tackle the weaknesses of slow melee units rather than adding techs like “Gambesons”. Cause it will require a lot of skill to execute the various tactics. You need to think about when you want to use it, cause there is a cooldown on it. And ofc the opponents can also try various tactics to counteract it. Like trying to cut off your escape route or just trying to bait you into placing the fortifications but then using their army elsewhere anyways. Or ofc trying to use mobile units to block tiles, so you can’t get up a “clean” wall.