There are Marks of Honor for the daily PvP missions, and I understand that the Marks of Valor are received from the task forces, like Infected. Every PvP match you do also gives Medals of a certain type (Medals of Excellence at the highest level) so there is that too.
End game 3 types of medals exist. And of course, the hardest to get is Valor. Even if you know infected by heart and your team is fine tune and spec for it. Still takes 90 mins at least to do.
Infected is of course on a cooldown, once you done it, got to wait 20 hours or so to attempt it again.
Linear Mode
