What is the purpose of many of the markers I see around the table in Midgard photos?
* 'Charging/winning' - to remind you which units gain the 're-roll your ones in combat' related to either charging or having won the previous combat.
* Markers to indicate how many 'mighty deeds' each character has left. Most people try to choose themed ones for their army. I used Viking style beard rings for my Arthurian army but anything will do.
* Markers to indicate loss of stamina in a unit. You can remove casualties for this but many players have 'full unit bases' rather than sabots. Many people use mini dice or 'wound counters' or 'blood drop counters' for this.
Some people hate too many markers on a table. I personally think Midgard treads the right side of that line, but others may disagree.