I also dislike the MOD system, The time it takes to figure out how it works is too long, let alone how to optimize your weapons, which can be an overly complicated process; and the kill points to get all the mods you want for a single weapon is far too expensive! The design of the MOD system goes against simplicity, it would be more enjoyable if the costs to using it were significantly reduced (the cost for extractions) or if mods could be installed and uninstalled from already constructed weapons and be stored in a mod bank, where you could re-install mods into any weapon you like, be they pre-construction or post construction.