thanks for the feedback! I'm still developing this game, I've made the pointer.
for the collisions, I've changed from overlap circle to raycast and add two more groundcheck, for the transparency in the sprites I've also fix it with a better sprite.
The minimap is new issue(thanks for the idea), and for the gameplay issue, maybe it's true if this game more like a singleplayer than a multiplayer game, I will think a solution to fix this.
anyway, thanks for your feedback thanks.