The Mark, or Mk, level of an item corresponds directly to the minimum rank a player must hold in order to be able to equip the item. The odd-numbered Marks (e.g. I, III, V, VII, IX) correspond to slightly lower-quality versions of the next Mark up. In other words, a Mk III item is a lower-quality version of a Mk IV item, both of which can be used by their corresponding rank (Lt. Commander). The higher the mark number, the greater the items' abilities.
| Tier | Mark | Item Rank |
|---|---|---|
| 1st | Mark I–II | Lieutenant |
| 2nd | Mark III–IV | Lt. Commander |
| 3rd | Mark V–VI | Commander |
| 4th | Mark VII–VIII | Captain |
| 5th | Mark IX–X | Admiral / General |
Rarity --A measure of an item's modifiers to an ability.