Here is a tested list for XCOM 2 console commands. I found some of these commands myself and others have been gathered from all over the net. I also created an online tool to class change and buff your Soldiers, to facilitate the process.
XCom 2 Character Booster. Simply enter the name of your Soldier and select a class. The script will return the console commands that you need to enter to buff your soldier.
2k Games published a new video of the upcoming remake of the original „XCOM: Enemy Unknown Game“ by Firaxis. They aim to polish the game up to a modern standard while still staying true to the original game.