"When DH first started working in law enforcement he started giving orders and acting irritated if those orders weren't followed. "
My husband's department called this the "John Wayne" syndrome. As wives of new officers. we were told that this would happen. The senior wife advised us to let them get away with it for about 5 days and on the 6th day, introduce DH to the trash and chores around the house.
I know a lot of officers who play video games. It is a way to unwind from the stress of the day. No upset citizens talking to them or brass giving them orders. I'm sure he loves his child, but sometimes as public safety employees, you just need a little time getting the rest of the day out of your head. I know I do. I call it "mommy needs 30 minutes of silence" time. After that, I will listen to whatever you have to say.
As a couple, you need to decide what you are both willing to do to get your finances in order. It is possible that your husband thinks if you can afford Disney every year, then what the harm is a video game. Other thought is he sees exactly how much you both owe and is afraid that he can't possibly make enough to cover that debt. Good luck to you both.