I seem to be not getting something about Skirmishes

How do I get First Marks? I'm a lvl 60 Warden and JUST started Skirmishing... (Turbine gives me too many quests). I never get First Marks... I gathered that maybe I'm supposed to get them from lower level skirmishes, but doesn't this nerf your rewards? From what I can tell, I need them to get skills for my skirmish buddy.

Am I just missing something?