We have a Library in our hideout, how about adding 50 Books each giving you a little boost when placed in your library, these books can be stored in your Library, the books have to be found in raid in order to be able to store it in the Library, you should be able to store only 1 of the same book in your library, having a full collection would boost your skill development while in raid by 15% , having half the collection should give 5% boost.
Various missions can be created from this, also various rewards from completing any mission.
Lets fill our libraries ?
Let me know if this is a good idea.