Note that this feedback is based on the build(s) available at the end of the jam.
It takes a while to get the hang of the timing within the game, and I feel that there's room for improvement with regards to communicating what the windows of attack and vulnerability are. That said, it does communicate some of the risk and cost to individuals of volley fire tactics.
The character art and gunsmoke animations are rough, but nice. The rest of the game's visual presentation feels like something that could be improved upon with touches like gradients on the sky and ground, animated clouds, and iconographic indicators for timers.
The music and sound effects are decent, but repetitive. I didn't manage to make it to the Prussians, but it would be cool to hear a different music track for that battle. I'm not entirely certain, but I think I heard both nap.mp3 and brit.mp3 playing at the same time during gameplay and I'm not certain if that's intentional.
There's a neat concept here, and Granadiers was a fun submission to play.
Thanks for submitting and best of luck with the project if you continue development! :D