It's very sad you simplified the game with marks, but now it can be cunfuse in hard situations and sometimes it hinders...
And real gameplay sittuation (2:20):
So it's look as interface bug, because you can buy pack by a category button (with steam icon), than will have redirected to Argo Supporter's Pack. It's not scary, but will be confused new players.
Rissian letsplay improvisation (GunGame mode). You have a pistol, 2 grenades and light armor.
And one more improvisation: achievements in Project Argo (10 headshots).