Warhammer 40k board game is a miniature war game that basically works by building an army, creating rules and devices for combat, and alternating between them until a winner is determined.
To play the game you need to know the rules of the game first. In particular, the hard version of the Warhammer 40k rulebook serves not only as a rulebook but also as a guide for selecting soldiers. You can get the best warhammer 40k games via https://tistaminis.com/pages/games-workshop-homepage.
building a model takes a lot of time, effort, patience, and of course money. Therefore, it is better to read the rule book and basic information about each soldier first before making any major decisions.
A shorter version of the ruleset can also be found in the "Assault on Black Reach" starter kit. To "get to know" the soldier you have selected further, you can also read the "Code" or a specific set of rules for soldiers.
The code contains all the rules and information you need to know about every model in your squad. After you have chosen your devotion, you can continue to buy your model. You don't have to run out of money when you first buy a model.
One of the most fun parts of the Warhammer 40k board game is that you can customize, assemble and paint the models you buy yourself.
Hence, you can choose to follow the game shop design using the artwork included in the rule book, or create your own troop with unique colors for your model.