First I got the game to work by installing the game ouside of the GOG game folder. Example: In my case I installed it in Program Files (x86) in the C drive. I can play past the first mission and the game as normal. I like the game it rewards you for using good movement and tactics. A disorganized army is a dead army. Managing your marines, leveling them up, and making sure they're equipped properly is critical to playing the game and could screw you over later down the line if progressed improperly. Issues come when trying to figure out who is who in your army. Everyone looks the same in there blue armor with little variations that it can take awhile to figure out who is who on the battlefield. This is where being able to recolor marines would be helpful or squad markings. Also this game needed to add a different enemy faction to the game for you to fight like Orks or Eldar because it does get repetitive, but this is the best Ultramarine game for the best Ultramarine experience.