I just realized that my epic (and non-epic) Kit Modules have the wrong level. The ones I have are level 12, but here are the kit modules appearing at lower levels ingame for some unknown reason:
The epic ones:
Ceasefire MK XII (appears as MK IV instead)
Sabotage MK XII (appears as MK IV instead)
Bio-molecular photon grenade MK XII (appears as MK X instead)
Micro-Photon Torpedo Launcher MK XII (appears as MK X instead)
Then I have common/uncommon ones appearing at even worst MK levels:
(Uncommon) Rally Cry MK IV (appears as MK II instead)
(Common) Suppressing Fire XII (appears as MK I instead)