Memos are beautiful pieces of paper that appear on your desk when you're not commanding your LRRP in the field. They have many different outcomes, some may give a chance to raise a Fresh Recruit to Sgt., others may request you give up a Sgt. They are the lifeblood of your desk work, they give a chance to raise the ever so important Merit, as well as opportunities. They are critical to the experience and need to attended to at once.
As much as war is fighting and recce, it's also paperwork (To some extent). Filling paperwork is important just as is filling your enemy with holes; one should remember that paperwork might not always have a positive outcome.