There are 12 categories of mods, of which most have several stages (currently 30 in total). Higher stage mods only become available once all prior stages are owned.
So does it work like leveling up? You need to own the first stage of mods, only then you can own the second stage and so on. You can not just buy the second stage mods without having first stage mods.
If this is the case then do the advantages add up when you own second stage of mods or do you have to spare the first mods to attach the second stage mods making the first ones useless?
When purchasing a mod with mission credits, make sure it is compatible with the type of weapon you wish to use it with. There are restrictions and exclusions.
So they act like the ammunition, specific weapons have specific ammunition or mods.
Has anyone used or bought any mods yet? Have you tested it? How is it? Please share with us!