this is a 75 gig torrent filled with how to books-mostly in pdf's, if you use a program like qbittorrent you can pick and chose which folders you want so you can avoid stuff like computers/explosives/forensics if you dont want those sections. This is truely a 1 stop shop for what you are asking about
http://thepiratebay.se/torrent/4372796/Mega_Combat_Weaponry_Tactics_Torrent 