Spoiler (click to reveal)
...you should have encountered a mission briefing and a mission briefing update, which you can keep for your reference. You've also seen one objective you were subsequently told to destroy, and a replacement which you should still have, and which should go back out at the start of February (unless another legacy card says otherwise). You should also have found your January month-end bonus, which you only scratch if you win a game in January. That card says you should destroy it at the end of February.