Playing from an asset for commercial purposes?

Question

Unity

I have a UnitZ BattleGround kit, I'm making a game based on it, but I have questions that haunt me.
1. Can I use this game (remastered) for commercial purposes?
2. Do I need to buy a game from Asset Story? I downloaded for free ^_^. After all, I'm going to completely replace (remove) everything that is there with my idea.
3. What do I need to change in the asset (I know the logo)?
4. Here I am changing everything that I do not need to remove. But do I need to change the scripts, or can they be left as is?
PS I'm not going to use their idea, I have my own idea of ​​what to add, what to improve. In short, my project, but I will use the asset.
5. And the question is, I got the right to my game and the logo was reguled, but can one of my scripts in the game be sued.

Answer 1

https://support.unity3d.com/hc/en-us/articles/2056...