We really appreciate you playing the game and dropping this thoughtful feedback! The trooper icon hitbox was funnily enough made smaller because of a collision bug that we kept encountering. We'll try to find a way to solve that bug to make their hitboxes full grid tiles because I can definitely see how that would hamper the playability to not have the whole tile selectable. We also ended up updating the game to add the positioning of the troopers on the grid during the preparation stage!