The game concept is pretty nice, helps to understand that taking over a hill isnt that easy and brings in those heavy war vibes.
The trench building system seems nice, however i’d also add corner trenches because there isnt a way to connect them if you want to make a turn/zigzag pattern.
I’d also add something like a reinforcement at both teams’ spawns to prevent spawnkill.
One more suggestion is something that can help in trench warfare. like a mortar or maybe chemical weapons.
This rotation thing is mostly caused by your builds sticking to the normal of any surface your mouse is on. The trenches are a bit buggy with invisible parts hitting raycasts, which is probably why it appears like that in your screenshot.