I complete the tasks of the battle pass but I don’t receive the cards, does it happen to someone else?
If you have not brought the elite battle pass. You only
get the cards marked “Free”
As D1ngle said.
If you plan to play Enlisted for some time, consider buying the premium battlepass. It provides a lot of silver orders, gives access to a few special weapons - vehicles - troops, and if you complete it all you earn back more than enough gold to buy the next battle pass, so if you play regularly it’s basically a one-time purchase and then it even generates some extra gold.