You can view your loadout cards in the merc menu, but you can’t select them. And if you can select them, that is not clear at all. You should be able to select which loadout card to use on each merc here, and it should be clearly visible in the loadout menu and in the upper right squad setup which card each one is using.
In a match lobby, you can’t read what the loadout cards abilities do, that needs to change as well.
Clicking on the mercs tab at the top should bring you back to the main mercs menu. I was clicking around for a while before I saw the mercs / button to take me back.
It also doesn’t say what kind of class they are and what they can do. If a merc can defuse or plant a bomb faster than others it needs to be very clear that this is his job, and it needs to say that at the main merc menu.